Not sure where to start?
Try these collections:

","empty_cart_collections",[],"recent_products_enabled","recent_products_heading","Recently viewed","recent_products_limit","show_recent_products_vendor","show_recent_products_price",{"_29":502,"_36":503,"_10":502},"search-drawer",{},{"_29":505,"_31":506,"_62":551,"_36":552,"_10":505},"newsletter-popup",{"_507":508,"_417":518,"_527":528,"_532":533,"_535":536,"_540":541,"_543":544},"text-1",{"_29":40,"_36":509},{"_40":510,"_511":512,"_513":514,"_515":516,"_517":71,"_47":39,"_48":49},"

FIRST TIMER?

","text_size","subtext-custom","text_max_size",12,"text_font","body","secondary_color",{"_29":417,"_36":519},{"_417":520,"_521":522,"_523":524,"_47":525,"_48":526},"Sign up and get 20% off your first order","heading_size","text-2xl lg:text-3xl","heading_tag","h2","scribble","basic-underline","spacing-1",{"_29":529,"_36":530},"spacing",{"_203":394,"_531":514},"height_mobile","form",{"_29":532,"_36":534},{},"text-2",{"_29":40,"_36":537},{"_40":538,"_511":539,"_513":394,"_515":516,"_517":71,"_47":39,"_48":49},"

Subscribe to our newsletter and be the first to hear about our new arrivals, special promotions and online exclusives.

","text-sm","media",{"_29":540,"_36":542},{},"floating",{"_29":543,"_55":71,"_36":545},{"_417":546,"_547":548,"_68":71,"_549":71,"_550":45,"_79":252,"_81":114},"Get 20% Off","content_position","left-0","mobile_disabled","mobile_hide_social",[507,417,527,532,535,540,543],{"_553":554,"_555":71,"_556":71,"_557":77,"_558":559,"_560":561,"_547":562,"_563":252,"_564":114,"_565":85,"_566":114,"_567":252,"_568":43,"_569":252},"mode","enabled","only_homepage","only_visitor","delay","expiry",30,"text_alignment","left","right-0","color_drawer_text","color_drawer_background","color_drawer_highlight","color_drawer_button_text","color_drawer_button_background","color_drawer_button_gradient","color_drawer_overlay",{"_29":571,"_31":572,"_62":588,"_36":589,"_10":571},"cookie-banner",{"_417":573,"_40":577,"_529":581,"_583":584},{"_29":417,"_36":574},{"_417":575,"_521":576,"_523":524,"_47":39,"_48":49},"We use cookies","text-lg-2xl",{"_29":40,"_36":578},{"_40":579,"_511":580,"_513":394,"_515":516,"_517":45,"_47":39,"_48":49},"

This site uses cookies for better user experience and analytics.

","text-base",{"_29":529,"_36":582},{"_203":142,"_531":514},"buttons",{"_29":583,"_36":585},{"_435":586,"_437":587},"Accept","Decline",[417,40,529,583],{"_553":554,"_557":486,"_560":74,"_547":548,"_563":252,"_564":114,"_565":85,"_566":114,"_567":252,"_568":43},{"_29":591,"_31":592,"_62":624,"_36":625,"_10":591},"mobile-dock",{"_593":594,"_600":601,"_604":605,"_609":610,"_614":615,"_619":620},"mobile-dock-0",{"_29":595,"_36":596},"home",{"_597":43,"_598":599},"custom_icon","title","Home","mobile-dock-1",{"_29":377,"_36":602},{"_597":43,"_598":603},"Menu","mobile-dock-2",{"_29":606,"_36":607},"search",{"_597":43,"_598":608},"Search","mobile-dock-3",{"_29":42,"_36":611},{"_597":43,"_598":249,"_42":612,"_613":45},"shopify://collections/all","external","mobile-dock-4",{"_29":616,"_36":617},"cart",{"_597":43,"_598":618},"Cart","mobile-dock-5",{"_29":621,"_36":622},"account",{"_597":43,"_598":623},"Account",[593,600,604,609,614,619],{"_79":116,"_81":114,"_83":43,"_393":626,"_395":626,"_459":71,"_89":71},8,"headerMenu",{"_10":629,"_630":631},"gid://shopify/Menu/50248908867","items",[632,664,681,721,746,762],{"_10":633,"_634":635,"_598":98,"_29":636,"_205":637,"_630":638},"gid://shopify/MenuItem/105088680003","tags",[],"HTTP","https://www.iqair.com/world-air-quality",[639,642,646,650,654,659],{"_10":640,"_634":641,"_598":107,"_29":636,"_205":111},"gid://shopify/MenuItem/534487171150",[],{"_10":643,"_634":644,"_598":645,"_29":636,"_205":137},"gid://shopify/MenuItem/534487203918",[],"Live Air Quality Ranking",{"_10":647,"_634":648,"_598":649,"_29":636,"_205":126},"gid://shopify/MenuItem/534487236686",[],"Live Air Quality Map",{"_10":651,"_634":652,"_598":653,"_29":636,"_205":149},"gid://shopify/MenuItem/534487269454",[],"Historical PM 2.5 Data",{"_10":655,"_634":656,"_598":657,"_29":636,"_205":658},"gid://shopify/MenuItem/534487302222",[],"Air Quality API","https://www.iqair.cn/cn-en/air-quality-monitors/api",{"_10":660,"_634":661,"_598":662,"_29":636,"_205":663},"gid://shopify/MenuItem/557204766798",[],"Air Quality App","https://www.iqair.cn/cn-en/air-quality-monitors/air-quality-app",{"_10":665,"_634":666,"_598":168,"_29":636,"_205":667,"_630":668},"gid://shopify/MenuItem/105088712771",[],"https://www.iqair.cn/cn-en/air-quality-monitors",[669,673,677],{"_10":670,"_634":671,"_598":170,"_29":636,"_205":672},"gid://shopify/MenuItem/534487334990",[],"https://www.iqair.com/measure-air-quality",{"_10":674,"_634":675,"_598":173,"_29":636,"_205":676},"gid://shopify/MenuItem/534487367758",[],"https://www.iqair.com/us/improve-air-quality",{"_10":678,"_634":679,"_598":175,"_29":636,"_205":680},"gid://shopify/MenuItem/534487400526",[],"https://www.iqair.cn/cn-en/community-air-quality-monitoring",{"_10":682,"_634":683,"_598":180,"_29":636,"_205":684,"_630":685},"gid://shopify/MenuItem/428842975310",[],"https://www.iqair.cn/cn-en/newsroom",[686,691,696,701,706,711,716],{"_10":687,"_634":688,"_598":689,"_29":636,"_205":690},"gid://shopify/MenuItem/534487433294",[],"Air Quality News","https://www.iqair.cn/cn-en/newsroom?tag=Air%20Quality",{"_10":692,"_634":693,"_598":694,"_29":636,"_205":695},"gid://shopify/MenuItem/535208525902",[],"Climate","https://www.iqair.cn/cn-en/newsroom?tag=Climate",{"_10":697,"_634":698,"_598":699,"_29":636,"_205":700},"gid://shopify/MenuItem/535208558670",[],"Community","https://www.iqair.cn/cn-en/newsroom?tag=Community",{"_10":702,"_634":703,"_598":704,"_29":636,"_205":705},"gid://shopify/MenuItem/535208591438",[],"Featured Contributor","https://www.iqair.cn/cn-en/newsroom?tag=Featured%20Contributor",{"_10":707,"_634":708,"_598":709,"_29":636,"_205":710},"gid://shopify/MenuItem/535208624206",[],"Health and Wellness","https://www.iqair.cn/cn-en/newsroom?tag=Health%20and%20Wellness",{"_10":712,"_634":713,"_598":714,"_29":636,"_205":715},"gid://shopify/MenuItem/535208656974",[],"Resources","https://www.iqair.cn/cn-en/newsroom?tag=Resources",{"_10":717,"_634":718,"_598":719,"_29":636,"_205":720},"gid://shopify/MenuItem/535208689742",[],"Wildfires","https://www.iqair.cn/cn-en/newsroom?tag=Wildfire",{"_10":722,"_634":723,"_598":185,"_29":636,"_205":724,"_630":725},"gid://shopify/MenuItem/535208722510",[],"https://www.iqair.cn/cn-en/about-iqair/our-causes",[726,729,733,737,741],{"_10":727,"_634":728,"_598":187,"_29":636,"_205":724},"gid://shopify/MenuItem/535208755278",[],{"_10":730,"_634":731,"_598":188,"_29":636,"_205":732},"gid://shopify/MenuItem/535208788046",[],"https://www.iqair.cn/cn/about-iqair/our-causes#section-timeline_XBCMEg",{"_10":734,"_634":735,"_598":191,"_29":636,"_205":736},"gid://shopify/MenuItem/535208853582",[],"https://www.iqair.cn/cn-en/about-iqair/ESG-initiatives",{"_10":738,"_634":739,"_598":190,"_29":636,"_205":740},"gid://shopify/MenuItem/535208820814",[],"https://www.iqair.cn/cn-en/schools4earth",{"_10":742,"_634":743,"_598":744,"_29":636,"_205":745},"gid://shopify/MenuItem/561560289358",[],"Public-Private Partnerships","https://www.iqair.cn/cn-en/how-iqair-partners-with-cities",{"_10":747,"_634":748,"_598":238,"_29":636,"_205":749,"_630":750},"gid://shopify/MenuItem/552362246222",[],"https://www.iqair.cn/cn/support",[751,755,758],{"_10":752,"_634":753,"_598":241,"_29":636,"_205":754},"gid://shopify/MenuItem/552362278990",[],"https://www.iqair.cn/cn/support/knowledge-base",{"_10":756,"_634":757,"_598":239,"_29":636,"_205":749},"gid://shopify/MenuItem/552362311758",[],{"_10":759,"_634":760,"_598":244,"_29":636,"_205":761},"gid://shopify/MenuItem/552367652942",[],"https://www.iqair.cn/cn/support/contact-us",{"_10":763,"_634":764,"_598":249,"_29":765,"_205":766,"_630":767},"gid://shopify/MenuItem/535208886350",[],"COLLECTION","https://shop.iqair.cn/en/collections/air-purifiers",[768,772,776,780,785,790,794],{"_10":769,"_634":770,"_598":254,"_29":636,"_205":771},"gid://shopify/MenuItem/535208919118",[],"https://www.iqair.com/products/air-purifiers",{"_10":773,"_634":774,"_598":250,"_29":636,"_205":775},"gid://shopify/MenuItem/535208951886",[],"https://www.iqair.com/products/air-quality-monitors",{"_10":777,"_634":778,"_598":319,"_29":636,"_205":779},"gid://shopify/MenuItem/535208984654",[],"https://www.iqair.cn/cn-en/products/air-purifiers/kn95-ffp2-face-mask?Size=Adult&Quantity=10+Pack",{"_10":781,"_634":782,"_598":783,"_29":636,"_205":784},"gid://shopify/MenuItem/535209017422",[],"Replacement Filters","https://www.iqair.cn/cn-en/products/replacement-filters",{"_10":786,"_634":787,"_598":788,"_29":636,"_205":789},"gid://shopify/MenuItem/535209050190",[],"Accessories","https://www.iqair.cn/cn-en/products/accessories-replacement-parts",{"_10":791,"_634":792,"_598":793,"_29":636,"_205":663},"gid://shopify/MenuItem/535209082958",[],"IQAir AirVisual App",{"_10":795,"_634":796,"_598":797,"_29":636,"_205":798},"gid://shopify/MenuItem/552465465422",[],"For Organizations","https://www.iqair.cn/cn/commercial-air-purifiers","footerMenu",{"_10":801,"_630":802},"gid://shopify/Menu/50248941635",[803,847,858,907,934,960],{"_10":804,"_634":805,"_598":806,"_29":636,"_205":807,"_630":808},"gid://shopify/MenuItem/543157715022",[],"About IQAir","https://shop.iqair.cn/en#",[809,814,819,824,829,832,837,842],{"_10":810,"_634":811,"_598":812,"_29":636,"_205":813},"gid://shopify/MenuItem/543157747790",[],"About Us","https://www.iqair.cn/cn-en/about-iqair",{"_10":815,"_634":816,"_598":817,"_29":636,"_205":818},"gid://shopify/MenuItem/543157780558",[],"Contact Us","https://www.iqair.cn/cn-en/support/contact-us",{"_10":820,"_634":821,"_598":822,"_29":636,"_205":823},"gid://shopify/MenuItem/558373961806",[],"Careers","https://jobs.iqair.com/en",{"_10":825,"_634":826,"_598":827,"_29":636,"_205":828},"gid://shopify/MenuItem/558373994574",[],"Media Inquiries","https://www.iqair.cn/cn/media-contact",{"_10":830,"_634":831,"_598":192,"_29":636,"_205":193},"gid://shopify/MenuItem/558374027342",[],{"_10":833,"_634":834,"_598":835,"_29":636,"_205":836},"gid://shopify/MenuItem/558374060110",[],"Awards and Partnerships","https://www.iqair.cn/cn/about-iqair/awards-partnerships",{"_10":838,"_634":839,"_598":840,"_29":636,"_205":841},"gid://shopify/MenuItem/558374092878",[],"Experience Center","https://www.iqair.cn/cn-en/experience-center",{"_10":843,"_634":844,"_598":845,"_29":636,"_205":846},"gid://shopify/MenuItem/558374125646",[],"Partner with Us","https://www.iqair.cn/cn/affiliate-program",{"_10":848,"_634":849,"_598":238,"_29":636,"_205":807,"_630":850},"gid://shopify/MenuItem/558374158414",[],[851,854],{"_10":852,"_634":853,"_598":239,"_29":636,"_205":749},"gid://shopify/MenuItem/558374191182",[],{"_10":855,"_634":856,"_598":242,"_29":636,"_205":857},"gid://shopify/MenuItem/558374223950",[],"https://www.iqair.cn/cn-en/support/warranty",{"_10":859,"_634":860,"_598":180,"_29":636,"_205":807,"_630":861},"gid://shopify/MenuItem/543157813326",[],[862,865,869,873,878,883,887,892,897,902],{"_10":863,"_634":864,"_598":689,"_29":636,"_205":684},"gid://shopify/MenuItem/543157846094",[],{"_10":866,"_634":867,"_598":699,"_29":636,"_205":868},"gid://shopify/MenuItem/543157878862",[],"https://www.iqair.cn/cn-en/newsroom?tag=Press%20Releases",{"_10":870,"_634":871,"_598":699,"_29":636,"_205":872},"gid://shopify/MenuItem/543157911630",[],"https://www.iqair.cn/cn-en/media-contact",{"_10":874,"_634":875,"_598":876,"_29":636,"_205":877},"gid://shopify/MenuItem/558374256718",[],"Air Quality Resources","https://www.iqair.cn/cn/newsroom?tag=Resources",{"_10":879,"_634":880,"_598":881,"_29":636,"_205":882},"gid://shopify/MenuItem/558374289486",[],"Featured Contributors","https://www.iqair.cn/cn/newsroom?tag=Featured%20Contributor",{"_10":884,"_634":885,"_598":709,"_29":636,"_205":886},"gid://shopify/MenuItem/558374322254",[],"https://www.iqair.cn/cn/newsroom?tag=Health%20And%20Wellness",{"_10":888,"_634":889,"_598":890,"_29":636,"_205":891},"gid://shopify/MenuItem/558374355022",[],"Success Stories","https://www.iqair.cn/cn/newsroom?tag=Success%20Stories",{"_10":893,"_634":894,"_598":895,"_29":636,"_205":896},"gid://shopify/MenuItem/558374387790",[],"Awards and Reviews","https://www.iqair.cn/cn/newsroom?tag=Awards%20And%20Reviews",{"_10":898,"_634":899,"_598":900,"_29":636,"_205":901},"gid://shopify/MenuItem/558374420558",[],"Press Releases","https://www.iqair.cn/cn/newsroom?tag=Press%20Releases",{"_10":903,"_634":904,"_598":905,"_29":636,"_205":906},"gid://shopify/MenuItem/558374453326",[],"Air Cleaning Technology","https://www.iqair.cn/cn/newsroom?tag=Air%20Cleaning%20Technology",{"_10":908,"_634":909,"_598":797,"_29":636,"_205":807,"_630":910},"gid://shopify/MenuItem/558374486094",[],[911,914,919,924,929],{"_10":912,"_634":913,"_598":352,"_29":636,"_205":798},"gid://shopify/MenuItem/558374518862",[],{"_10":915,"_634":916,"_598":917,"_29":636,"_205":918},"gid://shopify/MenuItem/558374551630",[],"Request a Bid","https://www.iqair.cn/cn/commercial/request-a-bid",{"_10":920,"_634":921,"_598":922,"_29":636,"_205":923},"gid://shopify/MenuItem/558374584398",[],"Clean Air Facility","https://www.iqair.cn/cn/commercial-applications/clean-air-facilities",{"_10":925,"_634":926,"_598":927,"_29":636,"_205":928},"gid://shopify/MenuItem/558374617166",[],"Clean Air School","https://www.iqair.cn/cn/commercial-applications/clean-air-school",{"_10":930,"_634":931,"_598":932,"_29":636,"_205":933},"gid://shopify/MenuItem/558374649934",[],"Dashboard","https://www.iqair.cn/cn/commercial-air-quality-monitors/enterprise-dashboard",{"_10":935,"_634":936,"_598":937,"_29":636,"_205":807,"_630":938},"gid://shopify/MenuItem/558374682702",[],"Shop Our Solutions",[939,944,948,952,956],{"_10":940,"_634":941,"_598":942,"_29":636,"_205":943},"gid://shopify/MenuItem/558374715470",[],"About IQAir Air Purifiers","https://www.iqair.cn/cn/products/air-purifiers",{"_10":945,"_634":946,"_598":319,"_29":636,"_205":947},"gid://shopify/MenuItem/558374748238",[],"https://www.iqair.cn/cn/products/residential-solutions/kn95-ffp2-face-mask",{"_10":949,"_634":950,"_598":250,"_29":636,"_205":951},"gid://shopify/MenuItem/558374781006",[],"https://www.iqair.cn/cn/products/air-quality-monitors",{"_10":953,"_634":954,"_598":783,"_29":636,"_205":955},"gid://shopify/MenuItem/558374813774",[],"https://www.iqair.cn/cn/products/replacement-filters",{"_10":957,"_634":958,"_598":959,"_29":636,"_205":943},"gid://shopify/MenuItem/558374846542",[],"Shop All Air Purifiers",{"_10":961,"_634":962,"_598":963,"_29":636,"_205":807,"_630":964},"gid://shopify/MenuItem/543157944398",[],"Shop IQAir",[965,970,975,980,985,990],{"_10":966,"_634":967,"_598":968,"_29":636,"_205":969},"gid://shopify/MenuItem/543157977166",[],"IQAir TMALL Shop","https://iqairaura.tmall.com/?mm_gxbid=1_2332819_0b2c96c7220da06debc83728a6ad6b6e",{"_10":971,"_634":972,"_598":973,"_29":636,"_205":974},"gid://shopify/MenuItem/543158009934",[],"IQAir JD Shop","https://mall.jd.com/index-739845.html",{"_10":976,"_634":977,"_598":978,"_29":636,"_205":979},"gid://shopify/MenuItem/543158042702",[],"IQAir Wechat Shop","https://271615542.cms.n.weimob.com/bos/cms/271615542/6000843569542/3852941542/design/index",{"_10":981,"_634":982,"_598":983,"_29":636,"_205":984},"gid://shopify/MenuItem/543158075470",[],"IQAir Xiaohongshu Shop","https://www.xiaohongshu.com/user/profile/5589de3062a60c5d82cb959f?tab=goods&channelType=share_outside&xhsshare=CopyLink&appuid=5589de3062a60c5d82cb959f&apptime=1723517746&share_id=c6ef1a93caeb4d27a266e3dfd0ea32bb",{"_10":986,"_634":987,"_598":988,"_29":636,"_205":989},"gid://shopify/MenuItem/543158108238",[],"IQAir Douyin Shop","https://z.douyin.com/p53t?scheme=snssdk1128://goods/store?sec_shop_id=XjvbsgYD&entrance_location=dou_shop_ad_101_2&tab_id=16&to_maker=shop_sdk",{"_10":991,"_634":992,"_598":993,"_29":636,"_205":994},"gid://shopify/MenuItem/543158141006",[],"IQAir Retail Stores","https://www.iqair.cn/cn-en/store-locator","giftWrappingMenu","seo",{"_598":998,"_999":1000,"_1001":1002,"_205":1003,"_1004":1005,"_1041":-7},"IQAir | First in Air Quality","description","IQAir is the world’s leading innovator of Indoor Air Quality solutions. Our passion is to help people live longer, healthier lives by creating the most ...","handle","@airvisual","http://www.iqair.cn/cn-en/newsroom?tag=Featured+articles","jsonLd",{"_1006":1007,"_1008":1009,"_12":1010,"_404":1011,"_1012":1013,"_1022":1023,"_205":1003,"_1034":1035},"@context","https://schema.org","@type","Organization","IQAir","https://www.iqair.com/dl/web/logos/ic-logo-iq-air-blue.svg","sameAs",[1014,1015,1016,1017,1018,1019,1020,1021],"https://www.facebook.com/iqair","https://twitter.com/IQAir","https://www.linkedin.com/company/the-iqair-group","https://www.instagram.com/iqair/","https://www.youtube.com/IQAir","https://www.pinterest.com/IQAir/","https://play.google.com/store/apps/details?id=com.airvisual&hl=en_US&gl=US","https://apps.apple.com/us/app/iqair-airvisual-air-quality/id1048912974","contactPoint",[1024,1032],{"_1008":1025,"_1026":1027,"_1028":1029,"_1030":1031},"ContactPoint","telephone","+1-866-488-1918","contactType","customer service","areaServed","US",{"_1008":1025,"_1026":1033,"_1028":1029,"_1030":19},"+86-400-108-5117","potentialAction",{"_1008":1036,"_1037":1038,"_1039":1040},"SearchAction","target","http://www.iqair.cn/cn-en/search-results?q={search_term}","query","required name='search_term'","robots","requestInfo",{"_1044":1045,"_1059":1060},"userPreferences",{"_1046":1047,"_1056":1031,"_1057":1058},"units",{"_1048":1049,"_1050":1051,"_1052":1053,"_1054":1055},"distance","kilometer","temperature","celsius","pressure","millibar","system","metric","AQI","timezone","America/New_York","userLocation",{"_18":1031,"_1061":1062,"_1063":1064,"_1065":1066,"_1057":1067,"_1068":118,"_1069":118},"countryName","United States","countryRegion","CA","city","Los Angeles","America/Los_Angeles","lat","lng",["P",1070],"ENV",{"_1073":1074,"_1075":1076,"_1077":1078,"_1079":1080,"_1081":1082,"_1083":1084,"_1085":1086,"_1087":1088,"_1089":-7,"_1090":1091,"_1092":1093,"_1094":1095,"_1096":1097,"_1098":1099,"_1100":-7},"MODE","production","GOOGLE_TAG_MANAGER_ID","GTM-PPQMD6","FACEBOOK_LOGIN_APP_ID","398656046993675","GOOGLE_LOGIN_CLIENT_ID","351521898-5bj7u78k0elfc3pod2gkejvfnju8hncf.apps.googleusercontent.com","APPLE_LOGIN_CLIENT_ID","4235W294QP.com.airvisual.airvisual","PUBLIC_STORE_DOMAIN","cms-cn.iqairint.com","PUBLIC_SHOP_ID","1844117571","IQAIR_DASHBOARD_DOMAIN","dashboard.iqair.cn","WAF_SDK","CUSTOM_EMBEDDABLE_MAP_CONSTANTS_HOST","https://www.airvisual.com","AIRVISUAL_CDN_DOMAIN","https://cdn.airvisual.net","AIRVISUAL_OSM_DOMAIN","https://osm.airvisual.net","AIRVISUAL_WIND_URL","https://website-api.airvisual.com/prod/current-wind-surface-level-gfs-1.0.json","AIRVISUAL_EARTH_URL","https://earth.airvisual.io","VERCEL",["P",1101],"consent",{"_1104":1105,"_1106":1107},"checkoutDomain","shop.iqair.cn","storefrontAccessToken","dccfc25fe657ff3be10ed75de20a9463","selectedLocale",{"_1110":1111,"_1112":1113,"_1114":19,"_1115":1116,"_1117":17,"_1118":1119,"_1120":1121,"_1122":1123},"label","China","language","EN","country","pathPrefix","cn-en","currency","flag","/flags/china.jpg","continent","Asia Pacific","websiteApiLang","en-CN","userAgent","Amazon CloudFront","dismissedCountryBanner","requestOrigin","http://www.iqair.cn","routes/$(locale)",{},"routes/$(locale).newsroom._index",{"_1133":1134,"_1347":1165,"_996":1348,"_1352":1353},"blog",{"_598":1135,"_996":1136,"_1137":1138},"IQAir News",{"_598":-5,"_999":-5},"articles",{"_1139":1140,"_1339":1340},"nodes",[1141,1173,1192,1210,1226,1242,1258,1274,1290,1306,1322],{"_1142":1143,"_1144":1145,"_1133":1147,"_1149":1150,"_1151":1152,"_1153":1154,"_1155":1156,"_1001":1157,"_10":1158,"_1159":1160,"_1161":-5,"_1162":1163,"_634":1164,"_598":1166,"_1167":1168},"__typename","Article","author",{"_12":1146},"IQAir Staff Writers",{"_1001":1148},"news","excerpt","See how Cameroon’s campus-based air quality monitoring is helping students, teachers, and communities make invisible pollution visible.","excerptHtml","

See how Cameroon’s campus-based air quality monitoring is helping students, teachers, and communities make invisible pollution visible.

","content","In Yaoundé, the capital of Cameroon, students at Franky Comprehensive Secondary School now have access to something most schools in the country have never had before: real-time air quality data from their own campus. Franky Comprehensive Secondary School is home to Cameroon’s first campus-based real-time air quality monitoring station. This is an important step in a country where public access to pollution data has long been limited. At the time of installation, the station was among a small number of sites in Cameroon providing real-time air quality data—and the first to be installed on a school campus. Why a school was the right place to begin Air pollution is often discussed at the level of cities, countries, or global health reports. But for children, it is also deeply local. It affects the air they breathe on the way to school, during outdoor activities, and throughout the school day. That local reality is one reason the project began on a campus. The installation was carried out through a partnership involving Franky Comprehensive Secondary School and Global Youth Strategy on Air Pollution and Climate Health (GYS). According to Elvis Ndikum, founder and chair of GYS, schools are one of the most effective places to build long-term public awareness around respiratory health. Discussing asthma prevalence among adolescents, he points to air pollution as an environmental hazard that is often overlooked, even though children are especially vulnerable to its effects. Turning invisible pollution into something students can see The AirVisual Outdoor monitor installed at Franky Comprehensive Secondary School provides real-time measurements of PM2.5, PM10, PM1, temperature, and humidity. The campus’s station profile data can be viewed online on IQAir’s live air quality map and mobile app, allowing students, staff, families, and the wider community to follow local air conditions throughout the day. That kind of visibility changes the role air quality plays in school and community life. When students see PM2.5 levels rise on hazy days and drop again after rainfall, air pollution stops being abstract. It becomes something observable and immediate—something that helps explain why some days feel different than others, and why health protection might need to change with conditions. For many students, this may be the first time local air quality has felt tangible. It also creates a local baseline of publicly visible air quality data—something that can support awareness now and stronger health and policy conversations over time. Filling a major monitoring gap in Cameroon Cameroon has a population of roughly 29 million people, yet public access to real-time air quality monitoring has historically been very limited. That makes it harder for communities to understand exposure risks, for researchers to build evidence, and for decision-makers to respond effectively. In that context, the new campus station is significant far beyond the school itself. It adds a new source of publicly visible data in a country where monitoring coverage remains sparse—and where limited data can make pollution risks harder to quantify and address. The project shows how local organizations and educational institutions can help close critical data gaps—not only by hosting equipment, but by making air quality part of community awareness. In doing so, the project helps build a stronger culture of attention around air quality and respiratory health. The local partnership driving the project The project’s strength lies in its core collaborative partnership. GYS helps position air pollution not just as an environmental topic, but as a youth and public-health issue. Franky Comprehensive Secondary School provides a place where monitoring can directly support awareness, learning, and daily decision-making. Together, they have created a model that shows what school-based air quality visibility can look like in practice, connecting local public-health awareness with broader efforts to expand access to air quality data. A first step with wider meaning The station at Franky Comprehensive Secondary School is an important first step, but its significance lies in what it could lead to next. As more schools gain access to monitoring, the benefits can extend outward: stronger awareness, more localized data, better public understanding, and a clearer picture of air quality over time. For Cameroon, this project shows that even a single campus installation can begin to shift how communities understand the air around them. That matters because the first step in responding to air pollution is often the same everywhere: making local conditions visible. Conclusion Cameroon’s first campus air quality monitor shows how local leadership can turn air pollution from an unseen risk into something communities can observe, understand, and respond to. The installation is part of IQAir’s Schools4Earth initiative to expand access to air quality monitoring in educational communities. Through Schools4Earth, IQAir supports school-based monitoring projects that help students and teachers understand local air quality conditions while contributing to broader public visibility. In Cameroon, that framework helped support a project already rooted in local health awareness and community engagement. At Franky Comprehensive Secondary School, students and teachers now have access to real-time air quality information in a setting where that knowledge can shape awareness early and locally. The project highlights the role schools can play not only in education, but also in building the public-health visibility that stronger air quality action requires.","contentHtml","

In Yaoundé, the capital of Cameroon, students at Franky Comprehensive Secondary School now have access to something most schools in the country have never had before: real-time air quality data from their own campus.

Franky Comprehensive Secondary School is home to Cameroon’s first campus-based real-time air quality monitoring station. This is an important step in a country where public access to pollution data has long been limited. At the time of installation, the station was among a small number of sites in Cameroon providing real-time air quality data—and the first to be installed on a school campus.

Why a school was the right place to begin

Air pollution is often discussed at the level of cities, countries, or global health reports. But for children, it is also deeply local. It affects the air they breathe on the way to school, during outdoor activities, and throughout the school day. That local reality is one reason the project began on a campus.

The installation was carried out through a partnership involving Franky Comprehensive Secondary School and Global Youth Strategy on Air Pollution and Climate Health (GYS).

According to Elvis Ndikum, founder and chair of GYS, schools are one of the most effective places to build long-term public awareness around respiratory health. Discussing asthma prevalence among adolescents, he points to air pollution as an environmental hazard that is often overlooked, even though children are especially vulnerable to its effects.

Turning invisible pollution into something students can see

The AirVisual Outdoor monitor installed at Franky Comprehensive Secondary School provides real-time measurements of PM2.5, PM10, PM1, temperature, and humidity.

The campus’s station profile data can be viewed online on IQAir’s live air quality map and mobile app, allowing students, staff, families, and the wider community to follow local air conditions throughout the day.

That kind of visibility changes the role air quality plays in school and community life. When students see PM2.5 levels rise on hazy days and drop again after rainfall, air pollution stops being abstract. It becomes something observable and immediate—something that helps explain why some days feel different than others, and why health protection might need to change with conditions.

For many students, this may be the first time local air quality has felt tangible. It also creates a local baseline of publicly visible air quality data—something that can support awareness now and stronger health and policy conversations over time.

Filling a major monitoring gap in Cameroon

Cameroon has a population of roughly 29 million people, yet public access to real-time air quality monitoring has historically been very limited. That makes it harder for communities to understand exposure risks, for researchers to build evidence, and for decision-makers to respond effectively.

In that context, the new campus station is significant far beyond the school itself. It adds a new source of publicly visible data in a country where monitoring coverage remains sparse—and where limited data can make pollution risks harder to quantify and address.

The project shows how local organizations and educational institutions can help close critical data gaps—not only by hosting equipment, but by making air quality part of community awareness. In doing so, the project helps build a stronger culture of attention around air quality and respiratory health.

The local partnership driving the project

The project’s strength lies in its core collaborative partnership. GYS helps position air pollution not just as an environmental topic, but as a youth and public-health issue. Franky Comprehensive Secondary School provides a place where monitoring can directly support awareness, learning, and daily decision-making. Together, they have created a model that shows what school-based air quality visibility can look like in practice, connecting local public-health awareness with broader efforts to expand access to air quality data.

A first step with wider meaning

The station at Franky Comprehensive Secondary School is an important first step, but its significance lies in what it could lead to next.

As more schools gain access to monitoring, the benefits can extend outward: stronger awareness, more localized data, better public understanding, and a clearer picture of air quality over time. For Cameroon, this project shows that even a single campus installation can begin to shift how communities understand the air around them.

That matters because the first step in responding to air pollution is often the same everywhere: making local conditions visible.

Conclusion

Cameroon’s first campus air quality monitor shows how local leadership can turn air pollution from an unseen risk into something communities can observe, understand, and respond to.

The installation is part of IQAir’s Schools4Earth initiative to expand access to air quality monitoring in educational communities. Through Schools4Earth, IQAir supports school-based monitoring projects that help students and teachers understand local air quality conditions while contributing to broader public visibility. In Cameroon, that framework helped support a project already rooted in local health awareness and community engagement.

At Franky Comprehensive Secondary School, students and teachers now have access to real-time air quality information in a setting where that knowledge can shape awareness early and locally. The project highlights the role schools can play not only in education, but also in building the public-health visibility that stronger air quality action requires.

","revealing-the-invisible-campus-air-quality-monitoring-cameroon","gid://shopify/Article/641046249550","onlineStoreUrl","https://shop.iqair.cn/en/blogs/news/revealing-the-invisible-campus-air-quality-monitoring-cameroon","trackingParameters","publishedAt","2026-04-22T17:37:45Z",[699,1165,704],"Featured articles","Revealing the Invisible: Campus air quality monitoring in Cameroon","image",{"_10":1169,"_202":-5,"_205":1170,"_207":1171,"_203":1172},"gid://shopify/ArticleImage/272989913166","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/A_6a093cde-fa27-41e3-9c04-912204f5078f.jpg?v=1776879472",839,674,{"_1142":1143,"_1144":1174,"_1133":1175,"_1149":1176,"_1151":1177,"_1153":1178,"_1155":1179,"_1001":1180,"_10":1181,"_1159":1182,"_1161":-5,"_1162":1183,"_634":1184,"_598":1185,"_1167":1186},{"_12":1146},{"_1001":1148},"Find out whether running an air purifier all day is necessary, safe, and worth it for cleaner indoor air.","

Find out whether running an air purifier all day is necessary, safe, and worth it for cleaner indoor air.

","In most cases, yes. If your goal is to reduce all and any exposure to air pollution, running an air purifier throughout the day is the most effective approach. That’s because indoor air pollution is not a one-time event. Dust settles and gets stirred up again, cooking releases particles and gases, outdoor pollution seeps indoors, and people and pets continuously add new pollutants to the air. Running your air purifier continuously is one of the most effective ways to reduce many common airborne pollutants, including dust, allergens, smoke particles, some airborne microbes carried in droplets or aerosols, and—if the purifier includes the right gas-phase media—certain odors and VOCs. Modern air purifiers are generally designed for continuous operation. Many models also include quieter settings, automatic modes, or smart sensors that help balance air cleaning with energy use and noise. Why continuous operation is best for air quality Indoor air can contain higher concentrations of pollutants than outdoor air, due to poor ventilation, off-gassing from furniture and cleaning products, pet dander, and outdoor pollution seeping indoors. Even after you clean a room once, new pollutants keep entering and forming—so turning a purifier off for long stretches often means you’re letting the room “reload.” Unlike intermittent use, which allows pollutants to accumulate between cycles, all-day operation ensures that contaminants like PM2.5 – particulate matter measuring 2.5 microns in diameter or smaller – are constantly filtered out, providing consistent protection. This is especially true in urban areas, near busy roads, or during wildfire and high-pollution events. Energy, noise, and maintenance considerations Running an air purifier all day does use electricity, but many modern units are designed to do so efficiently—especially on lower or auto settings. In real life, operating cost depends on the model, fan speed, and how many hours per day it runs. Noise also matters. Most high-quality purifiers are quiet enough for everyday use on lower settings, which is why many people run them continuously in bedrooms, living rooms, and home offices. During smoke events or high-pollution periods, a higher fan speed may be worth the extra sound because it helps reduce particle levels more quickly. Continuous use can also mean filters load faster. That’s normal. The tradeoff is straightforward: more run time usually means cleaner air, but also more consistent maintenance. The best approach is to follow the manufacturer’s replacement guidance or filter-life indicator rather than guessing. When you might adjust your approach While all-day use is ideal, there are a few scenarios where you might adjust: Low-pollution periods: If outdoor air quality is excellent and your home is well-ventilated, you can run the purifier intermittently or use an automated mode to conserve energy. Unoccupied rooms: If a room is rarely used, you can turn the purifier off or set it to a lower fan speed. Budget constraints: If energy use is a concern, prioritize the rooms where you spend the most time—especially bedrooms and main living spaces—and use lower or automatic settings when pollution levels are lower. Best practices for all-day air purifier use For best results, place your air purifier where air can move freely around it and avoid blocking it with furniture or walls. In bedrooms, many people prefer to place the unit a few feet from the bed, so the airflow isn’t directed straight at them. If your air purifier has an automatic or smart mode, use it. These settings can raise fan speed when pollution increases and lower it when air is cleaner, helping balance performance, noise, and energy use. During wildfire smoke or heavy outdoor pollution, keep windows and doors closed so you’re not constantly pulling new contaminants into the room. And to maintain performance over time, replace filters according to the manufacturer’s guidance or the system’s filter-life indicator. Frequently Asked Questions Is it safe to run an air purifier all day?Yes, most modern filtration-based air purifiers are designed for continuous operation. Choose a model that does not intentionally generate ozone, keep airflow unobstructed, and follow routine maintenance guidance to keep performance steady. Will running an air purifier all day increase my electricity bill?The impact is usually minimal. Energy-efficient air purifiers often cost only a few dollars per month to run continuously, and automatic or smart modes can further reduce energy use by lowering fan speed as needed. Can I run an air purifier in my bedroom overnight?Yes. Many people run air purifiers overnight, often on a lower or quieter setting. Place the unit a few feet from the bed to avoid direct airflow and minimize noise disruption. Do I need to run an air purifier if I have good ventilation?Even with good ventilation, indoor air can still contain pollutants from cooking, cleaning, pets, and outdoor sources. An air purifier adds an extra layer of protection, especially in urban or high-traffic areas. Conclusion If you want your indoor air to stay cleaner, it usually makes sense to leave your air purifier on throughout the day. Indoor pollution is constantly entering, forming, and being stirred back into the air—even when a room looks clean. For most households, the best strategy is simple: run the purifier consistently, place it well, maintain the filters, and increase fan speed during smoke, traffic, or other high-pollution periods. Clean air is easiest to maintain when you treat it as an ongoing condition—not a one-time fix.","

In most cases, yes. If your goal is to reduce all and any exposure to air pollution, running an air purifier throughout the day is the most effective approach.

That’s because indoor air pollution is not a one-time event. Dust settles and gets stirred up again, cooking releases particles and gases, outdoor pollution seeps indoors, and people and pets continuously add new pollutants to the air. Running your air purifier continuously is one of the most effective ways to reduce many common airborne pollutants, including dust, allergens, smoke particles, some airborne microbes carried in droplets or aerosols, and—if the purifier includes the right gas-phase media—certain odors and VOCs.

Modern air purifiers are generally designed for continuous operation. Many models also include quieter settings, automatic modes, or smart sensors that help balance air cleaning with energy use and noise.

Why continuous operation is best for air quality

Indoor air can contain higher concentrations of pollutants than outdoor air, due to poor ventilation, off-gassing from furniture and cleaning products, pet dander, and outdoor pollution seeping indoors. Even after you clean a room once, new pollutants keep entering and forming—so turning a purifier off for long stretches often means you’re letting the room “reload.”

Unlike intermittent use, which allows pollutants to accumulate between cycles, all-day operation ensures that contaminants like PM2.5 – particulate matter measuring 2.5 microns in diameter or smaller – are constantly filtered out, providing consistent protection. This is especially true in urban areas, near busy roads, or during wildfire and high-pollution events.

Energy, noise, and maintenance considerations

Running an air purifier all day does use electricity, but many modern units are designed to do so efficiently—especially on lower or auto settings. In real life, operating cost depends on the model, fan speed, and how many hours per day it runs.

Noise also matters. Most high-quality purifiers are quiet enough for everyday use on lower settings, which is why many people run them continuously in bedrooms, living rooms, and home offices. During smoke events or high-pollution periods, a higher fan speed may be worth the extra sound because it helps reduce particle levels more quickly.

Continuous use can also mean filters load faster. That’s normal. The tradeoff is straightforward: more run time usually means cleaner air, but also more consistent maintenance. The best approach is to follow the manufacturer’s replacement guidance or filter-life indicator rather than guessing.

When you might adjust your approach

While all-day use is ideal, there are a few scenarios where you might adjust:

\nLow-pollution periods: If outdoor air quality is excellent and your home is well-ventilated, you can run the purifier intermittently or use an automated mode to conserve energy.
\nUnoccupied rooms: If a room is rarely used, you can turn the purifier off or set it to a lower fan speed.
\nBudget constraints: If energy use is a concern, prioritize the rooms where you spend the most time—especially bedrooms and main living spaces—and use lower or automatic settings when pollution levels are lower.
\n

Best practices for all-day air purifier use

For best results, place your air purifier where air can move freely around it and avoid blocking it with furniture or walls. In bedrooms, many people prefer to place the unit a few feet from the bed, so the airflow isn’t directed straight at them.

If your air purifier has an automatic or smart mode, use it. These settings can raise fan speed when pollution increases and lower it when air is cleaner, helping balance performance, noise, and energy use.

During wildfire smoke or heavy outdoor pollution, keep windows and doors closed so you’re not constantly pulling new contaminants into the room. And to maintain performance over time, replace filters according to the manufacturer’s guidance or the system’s filter-life indicator.

Frequently Asked Questions

Is it safe to run an air purifier all day?
Yes, most modern filtration-based air purifiers are designed for continuous operation. Choose a model that does not intentionally generate ozone, keep airflow unobstructed, and follow routine maintenance guidance to keep performance steady.

Will running an air purifier all day increase my electricity bill?
The impact is usually minimal. Energy-efficient air purifiers often cost only a few dollars per month to run continuously, and automatic or smart modes can further reduce energy use by lowering fan speed as needed.

Can I run an air purifier in my bedroom overnight?
Yes. Many people run air purifiers overnight, often on a lower or quieter setting. Place the unit a few feet from the bed to avoid direct airflow and minimize noise disruption.

Do I need to run an air purifier if I have good ventilation?
Even with good ventilation, indoor air can still contain pollutants from cooking, cleaning, pets, and outdoor sources. An air purifier adds an extra layer of protection, especially in urban or high-traffic areas.

Conclusion

If you want your indoor air to stay cleaner, it usually makes sense to leave your air purifier on throughout the day. Indoor pollution is constantly entering, forming, and being stirred back into the air—even when a room looks clean.

For most households, the best strategy is simple: run the purifier consistently, place it well, maintain the filters, and increase fan speed during smoke, traffic, or other high-pollution periods. Clean air is easiest to maintain when you treat it as an ongoing condition—not a one-time fix.

","should-you-leave-an-air-purifier-on-all-day","gid://shopify/Article/640826540110","https://shop.iqair.cn/en/blogs/news/should-you-leave-an-air-purifier-on-all-day","2026-04-21T15:00:00Z",[905,1165],"Should you leave an air purifier on all day?",{"_10":1187,"_202":1188,"_205":1189,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/272987521102","Air purifer in living room","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/ShouldYouLeaveAirPurifierOn_Desk_6a13e14e-f992-4e62-85ca-36335c661632.jpg?v=1776870039",2880,1500,{"_1142":1143,"_1144":1193,"_1133":1194,"_1149":1195,"_1151":1196,"_1153":1197,"_1155":1198,"_1001":1199,"_10":1200,"_1159":1201,"_1161":-5,"_1162":1202,"_634":1203,"_598":1205,"_1167":1206},{"_12":1146},{"_1001":1148},"Clean air is widely recognized as essential for public health. Find out how air quality monitoring provides data to support healthier communities.","

Clean air is widely recognized as essential for public health. Find out how air quality monitoring provides data to support healthier communities.

","Each Earth Day highlights the connection between environmental conditions and public health (1). Air pollution is a leading environmental risk to human health worldwide—but it is often invisible. Air sensors are helping make local air quality measurable in ways that were not possible just a few years ago. By turning pollution into data, they give communities a clearer picture of what they are breathing and how conditions are changing over time. That visibility is what makes action possible. When pollution is measured and shared, communities are better equipped to understand exposure, identify sources, and respond to changing conditions. How air quality monitoring protects health Air sensors and monitoring networks provide real-time data that can inform health protection efforts by revealing pollutant exposure levels. Invisible, airborne pollution can seem abstract until air quality monitoring data reveals it—even when it is affecting breathing, learning, cardiovascular health, and long-term disease risk (2). PM2.5, or fine particulate matter measuring 2.5 microns in diameter or smaller, is one of the clearest examples. Because these particles are so small, they can be inhaled deep into the lungs and enter the bloodstream. Research has linked PM2.5 exposure to asthma, cardiovascular disease, and other chronic health risks. A review of studies focused on children and adolescents noted that exposure to air pollution can lead to respiratory illness, neurodevelopmental impairment, and worsened chronic conditions (3). A study focused on older adults also found that exposure to PM2.5 and nitrogen dioxide may increase the risk of Alzheimer's disease and related dementias (4). How climate change and air pollution are connected Climate change and air pollution are also increasingly intertwined. Wildfire smoke, industrial emissions, and vehicle emissions can place heavier burdens on low-income neighborhoods and school communities, where exposure risks are often higher and protections more limited (5). These same forces can also stress the natural systems people depend on—contributing to wildfire damage, reduced crop stability, water stress, and other environmental disruptions that affect life far beyond a single pollution event. Air sensor networks help uncover those patterns, connecting day-to-day exposure with broader environmental change. Where monitoring is still missing Global air quality monitoring has expanded, but coverage remains uneven. According to the 2025 World Air Quality Report, more cities and countries were able to contribute air quality data than in the previous year. That progress matters. But large gaps remain across parts of Africa, Central Asia, West Asia, Latin America, and even in some communities within the United States. Where monitoring is sparse or absent, pollution becomes harder to track, health risks are harder to quantify, and communities have less evidence to support action. Some countries are routinely underrepresented in global air quality reporting not because pollution is absent, but because monitoring infrastructure is limited. Recent setbacks have also shown how fragile access to data can be. The end of the U.S. Embassy air quality program in 2025 removed an important source of regulatory-grade air quality information in dozens of locations around the world, further weakening visibility in places where monitoring was already limited. Turning data into action Air sensors are increasingly being used to guide real-world decisions. Access to air quality data has helped communities respond more thoughtfully to environmental change. In some cities, expanding monitoring has helped connect pollution levels with public awareness and local action. In Accra, Ghana, education campaigns focused on indoor cooking and waste burning have worked alongside growing air quality awareness efforts to highlight health risks and encourage behavior change (6). In Bogotá, Colombia, new “ZUMA” clean air zones prioritize the health of low-income communities by combining road paving, traffic restrictions, and urban greening. The shift supports the city’s emphasis on bicycling and clean transportation (7). Monitoring becomes even more powerful when it is integrated into everyday environments. Schools, in particular, are emerging as important hubs for local awareness and action. Programs like Schools4Earth enable students and educators to track air quality in real time, helping communities connect data with daily decisions. At schools such as Harvard-Westlake School in Los Angeles and St. Andrews International School in Bangkok, monitoring supports real-time responses to changing conditions. When pollution levels rise, schools can adjust outdoor activities and reduce exposure throughout the day. What action can look like locally Air quality action often starts close to home. Communities are increasingly using air sensor data to develop local responses to air pollution. Monitoring is often introduced in places where people gather, such as schools, neighborhoods, or workplaces. Low-cost sensors can help communities begin building a clearer picture of local pollution. School-based monitoring efforts, like IQAir’s Schools4Earth initiative, can help connect air quality data with education and health advocacy. Local organizations, health advocates, and researchers work together to interpret findings and identify and support practical responses. Communities share the data through meetings, local campaigns, and public dashboards, expanding awareness. Conclusion When communities can see what is in the air, they are better able to understand conditions, respond to risks, and inform decisions about improving air quality. Air sensors are more than measurement tools—they are a foundation for understanding pollution and supporting informed action at the local level.","

Each Earth Day highlights the connection between environmental conditions and public health (1).

Air pollution is a leading environmental risk to human health worldwide—but it is often invisible. Air sensors are helping make local air quality measurable in ways that were not possible just a few years ago. By turning pollution into data, they give communities a clearer picture of what they are breathing and how conditions are changing over time.

That visibility is what makes action possible. When pollution is measured and shared, communities are better equipped to understand exposure, identify sources, and respond to changing conditions.

How air quality monitoring protects health

Air sensors and monitoring networks provide real-time data that can inform health protection efforts by revealing pollutant exposure levels.

Invisible, airborne pollution can seem abstract until air quality monitoring data reveals it—even when it is affecting breathing, learning, cardiovascular health, and long-term disease risk (2). PM2.5, or fine particulate matter measuring 2.5 microns in diameter or smaller, is one of the clearest examples. Because these particles are so small, they can be inhaled deep into the lungs and enter the bloodstream.

Research has linked PM2.5 exposure to asthma, cardiovascular disease, and other chronic health risks. A review of studies focused on children and adolescents noted that exposure to air pollution can lead to respiratory illness, neurodevelopmental impairment, and worsened chronic conditions (3). A study focused on older adults also found that exposure to PM2.5 and nitrogen dioxide may increase the risk of Alzheimer's disease and related dementias (4).

How climate change and air pollution are connected

Climate change and air pollution are also increasingly intertwined. Wildfire smoke, industrial emissions, and vehicle emissions can place heavier burdens on low-income neighborhoods and school communities, where exposure risks are often higher and protections more limited (5).

These same forces can also stress the natural systems people depend on—contributing to wildfire damage, reduced crop stability, water stress, and other environmental disruptions that affect life far beyond a single pollution event. Air sensor networks help uncover those patterns, connecting day-to-day exposure with broader environmental change.

Where monitoring is still missing

Global air quality monitoring has expanded, but coverage remains uneven.

According to the 2025 World Air Quality Report, more cities and countries were able to contribute air quality data than in the previous year. That progress matters. But large gaps remain across parts of Africa, Central Asia, West Asia, Latin America, and even in some communities within the United States.

Where monitoring is sparse or absent, pollution becomes harder to track, health risks are harder to quantify, and communities have less evidence to support action. Some countries are routinely underrepresented in global air quality reporting not because pollution is absent, but because monitoring infrastructure is limited.

Recent setbacks have also shown how fragile access to data can be. The end of the U.S. Embassy air quality program in 2025 removed an important source of regulatory-grade air quality information in dozens of locations around the world, further weakening visibility in places where monitoring was already limited.

Turning data into action

Air sensors are increasingly being used to guide real-world decisions. Access to air quality data has helped communities respond more thoughtfully to environmental change.

In some cities, expanding monitoring has helped connect pollution levels with public awareness and local action. In Accra, Ghana, education campaigns focused on indoor cooking and waste burning have worked alongside growing air quality awareness efforts to highlight health risks and encourage behavior change (6).

In Bogotá, Colombia, new “ZUMA” clean air zones prioritize the health of low-income communities by combining road paving, traffic restrictions, and urban greening. The shift supports the city’s emphasis on bicycling and clean transportation (7).

Monitoring becomes even more powerful when it is integrated into everyday environments. Schools, in particular, are emerging as important hubs for local awareness and action. Programs like Schools4Earth enable students and educators to track air quality in real time, helping communities connect data with daily decisions.

At schools such as Harvard-Westlake School in Los Angeles and St. Andrews International School in Bangkok, monitoring supports real-time responses to changing conditions. When pollution levels rise, schools can adjust outdoor activities and reduce exposure throughout the day.

What action can look like locally

Air quality action often starts close to home. Communities are increasingly using air sensor data to develop local responses to air pollution.

\nMonitoring is often introduced in places where people gather, such as schools, neighborhoods, or workplaces. Low-cost sensors can help communities begin building a clearer picture of local pollution.
School-based monitoring efforts, like IQAir’s Schools4Earth initiative, can help connect air quality data with education and health advocacy.
Local organizations, health advocates, and researchers work together to interpret findings and identify and support practical responses.
Communities share the data through meetings, local campaigns, and public dashboards, expanding awareness.
\n

Conclusion

When communities can see what is in the air, they are better able to understand conditions, respond to risks, and inform decisions about improving air quality. Air sensors are more than measurement tools—they are a foundation for understanding pollution and supporting informed action at the local level.

","air-sensors-a-powerful-tool-for-change","gid://shopify/Article/641355317326","https://shop.iqair.cn/en/blogs/news/air-sensors-a-powerful-tool-for-change","2026-04-20T15:00:05Z",[1204,1165],"Air Quality","Air sensors: A powerful tool for change",{"_10":1207,"_202":1208,"_205":1209,"_207":1171,"_203":1172},"gid://shopify/ArticleImage/272949182542","Kids riding bikes near an IQAir air monitor.","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/EarthDayMonitoring_Desk_8590e32e-3ee7-42ed-ba6d-2985222a1570.jpg?v=1776700135",{"_1142":1143,"_1144":1211,"_1133":1212,"_1149":1213,"_1151":1214,"_1153":1215,"_1155":1216,"_1001":1217,"_10":1218,"_1159":1219,"_1161":-5,"_1162":1220,"_634":1221,"_598":1222,"_1167":1223},{"_12":1146},{"_1001":1148},"Learn how HyperHEPA filtration captures ultrafine particles far smaller than the HEPA standard, and why that matters for indoor air quality.","

Learn how HyperHEPA filtration captures ultrafine particles far smaller than the HEPA standard, and why that matters for indoor air quality.

","Indoor air often contains a mix of pollutants that are easy to overlook—dust, pollen, smoke, and microscopic particles from traffic or combustion that can stay suspended in the air we breathe. For people with allergies, asthma, or respiratory sensitivities, reducing those particles indoors can make a noticeable difference in comfort and health. A HyperHEPA air purifier is a filtration-based air purifier designed to capture particles far smaller than the size standard commonly associated with HEPA filtration. In simple terms, it is built for environments where reducing ultrafine airborne particles is especially important. To understand why that matters, it helps to start with what standard HEPA filtration does well—and where higher-performance filtration can go further. What is HEPA filtration? HEPA (high-efficiency particulate air) filters are designed to trap 99.97% of particles as small as 0.3 microns, including dust, pollen, pet dander, and mold spores (1)(2). Originally developed during World War II to contain radioactive particles, HEPA technology has since become the industry standard for air purification. It works by forcing air through a dense mat of fibers, where particles are captured through a combination of interception, impaction, and diffusion. However, HEPA filters have limits. They struggle with ultrafine particles smaller than 0.3 microns, including some viruses and combustion particles. In real-world use, filtration performance also depends on the purifier’s design. If air can bypass the filter because of gaps or poor sealing, some polluted air may circulate without being filtered. In real-world use, those limitations can matter most when the air contains large amounts of ultrafine pollution—such as wildfire smoke, traffic-related combustion particles, or other high-particle events. In those situations, filter performance depends not just on the filter media itself, but also on how well the overall system is sealed. What is HyperHEPA filtration? A HyperHEPA air purifier is an air purifier built with filtration media designed to capture 99.5% of particles down to 0.003 microns—100 times smaller than the 0.3-micron benchmark commonly associated with standard HEPA filtration. That matters because many of the particles people worry about most indoors are extremely small. Ultrafine particles from combustion, traffic pollution, smoke, and some airborne biological material can behave differently from larger dust or pollen particles, staying suspended longer and reaching deeper into the respiratory system. A HyperHEPA air purifier is not a different category of appliance from an air purifier—it is a higher-performance particle filtration approach within an air purifier. In practice, that means the purifier is designed not only around the filter media itself, but also around system sealing and airflow so that filtered air is less likely to bypass the filter. Why ultrafine particles matter Not all airborne particles behave the same way. Larger particles, like visible dust or some pollen, settle more quickly. Ultrafine particles are different: they are so small that they can stay airborne longer and move more easily through indoor spaces. That’s one reason wildfire smoke, traffic emissions, and other combustion-related pollution can be so difficult to manage indoors. Even when the air looks clean, ultrafine particles may still be present. A higher-efficiency filtration system is designed to reduce more of those smaller particles from the air people actually breathe. How is HyperHEPA different from HEPA? When comparing HEPA and HyperHEPA filtration, the main differences come down to particle size performance and system design. Particle size range HEPA filters are designed to capture 99.97% of particles at 0.3 microns. This covers many common indoor particles such as dust, pollen, and mold spores. HyperHEPA filtration is designed to capture 99.5% of particles down to 0.003 microns, extending protection deeper into the ultrafine range. Real-world filtration performance A filter’s effectiveness depends not only on the media, but also on how well the purifier is built. If air bypasses the filter because of gaps or leakage, overall performance drops. HyperHEPA systems are typically designed with tighter sealing so that more of the air moved through the unit is actually filtered rather than escaping around the filter. This difference matters most when indoor air contains a large amount of ultrafine pollution, such as smoke, traffic-related particles, or other combustion byproducts. How to think about air purifier claims Not every air-cleaning technology works in the same way. Some systems are designed to capture pollutants, while others claim to destroy, neutralize, or transform them. That distinction matters. Physical filtration removes particles from circulation by trapping them in filter media. Other technologies may rely on chemical reactions, ionization, or light-based processes, and their effectiveness can vary depending on the pollutant, the room, and how the system is used. When evaluating an air purifier, it helps to ask a few simple questions: What pollutants is it actually designed to address? A good purifier should clearly state whether it is built for particles, gases and odors, or both. Particle filters address things like dust, pollen, smoke, and ultrafine particles; gases and VOCs require sorbent media such as activated carbon. Does it physically remove particles from the air? This is one of the clearest signs of a strong air-cleaning approach. Filtration-based systems trap particles in filter media instead of trying to alter them in the air or push them onto nearby surfaces. Does it rely on added reactive chemistry or generate byproducts? If a purifier uses ozone, ionization, or other reactive processes, it’s worth asking what else may be created along the way. A stronger approach is one that removes pollutants without adding new ones to the room. Is its performance based on clear, testable standards? Look beyond broad marketing claims. CADR can help show how quickly a purifier reduces particles in a room under short-term test conditions, but it does not tell you how performance holds up over time. CCM is useful because it reflects how well a purifier continues performing as filters load with pollutants, giving a better picture of long-term effectiveness. A stronger air purifier claim is usually a simpler one: capture pollutants efficiently, move enough air, and maintain that performance over time. Conclusion A HyperHEPA air purifier is a filtration-based air purifier built to capture extremely small airborne particles—well beyond the particle-size range most people associate with standard HEPA. That makes it especially relevant in situations where ultrafine pollution matters, such as wildfire smoke, traffic emissions, and other combustion-related indoor air concerns. The key idea is simple: don’t look only at whether a purifier says “HEPA.” Look at how small a particle it is designed to capture, how the system is sealed, and whether the overall design supports real-world performance over time.","

Indoor air often contains a mix of pollutants that are easy to overlook—dust, pollen, smoke, and microscopic particles from traffic or combustion that can stay suspended in the air we breathe. For people with allergies, asthma, or respiratory sensitivities, reducing those particles indoors can make a noticeable difference in comfort and health.

A HyperHEPA air purifier is a filtration-based air purifier designed to capture particles far smaller than the size standard commonly associated with HEPA filtration. In simple terms, it is built for environments where reducing ultrafine airborne particles is especially important.

To understand why that matters, it helps to start with what standard HEPA filtration does well—and where higher-performance filtration can go further.

What is HEPA filtration?

HEPA (high-efficiency particulate air) filters are designed to trap 99.97% of particles as small as 0.3 microns, including dust, pollen, pet dander, and mold spores (1)(2).

Originally developed during World War II to contain radioactive particles, HEPA technology has since become the industry standard for air purification. It works by forcing air through a dense mat of fibers, where particles are captured through a combination of interception, impaction, and diffusion.

However, HEPA filters have limits. They struggle with ultrafine particles smaller than 0.3 microns, including some viruses and combustion particles. In real-world use, filtration performance also depends on the purifier’s design. If air can bypass the filter because of gaps or poor sealing, some polluted air may circulate without being filtered.

In real-world use, those limitations can matter most when the air contains large amounts of ultrafine pollution—such as wildfire smoke, traffic-related combustion particles, or other high-particle events. In those situations, filter performance depends not just on the filter media itself, but also on how well the overall system is sealed.

What is HyperHEPA filtration?

A HyperHEPA air purifier is an air purifier built with filtration media designed to capture 99.5% of particles down to 0.003 microns—100 times smaller than the 0.3-micron benchmark commonly associated with standard HEPA filtration.

That matters because many of the particles people worry about most indoors are extremely small. Ultrafine particles from combustion, traffic pollution, smoke, and some airborne biological material can behave differently from larger dust or pollen particles, staying suspended longer and reaching deeper into the respiratory system.

$\"\"$

A HyperHEPA air purifier is not a different category of appliance from an air purifier—it is a higher-performance particle filtration approach within an air purifier. In practice, that means the purifier is designed not only around the filter media itself, but also around system sealing and airflow so that filtered air is less likely to bypass the filter.

Why ultrafine particles matter

Not all airborne particles behave the same way. Larger particles, like visible dust or some pollen, settle more quickly. Ultrafine particles are different: they are so small that they can stay airborne longer and move more easily through indoor spaces.

That’s one reason wildfire smoke, traffic emissions, and other combustion-related pollution can be so difficult to manage indoors. Even when the air looks clean, ultrafine particles may still be present. A higher-efficiency filtration system is designed to reduce more of those smaller particles from the air people actually breathe.

How is HyperHEPA different from HEPA?

When comparing HEPA and HyperHEPA filtration, the main differences come down to particle size performance and system design.

Particle size range

\nHEPA filters are designed to capture 99.97% of particles at 0.3 microns. This covers many common indoor particles such as dust, pollen, and mold spores.
\nHyperHEPA filtration is designed to capture 99.5% of particles down to 0.003 microns, extending protection deeper into the ultrafine range.

Real-world filtration performance

A filter’s effectiveness depends not only on the media, but also on how well the purifier is built. If air bypasses the filter because of gaps or leakage, overall performance drops.
HyperHEPA systems are typically designed with tighter sealing so that more of the air moved through the unit is actually filtered rather than escaping around the filter.

This difference matters most when indoor air contains a large amount of ultrafine pollution, such as smoke, traffic-related particles, or other combustion byproducts.

How to think about air purifier claims

Not every air-cleaning technology works in the same way. Some systems are designed to capture pollutants, while others claim to destroy, neutralize, or transform them.

That distinction matters. Physical filtration removes particles from circulation by trapping them in filter media. Other technologies may rely on chemical reactions, ionization, or light-based processes, and their effectiveness can vary depending on the pollutant, the room, and how the system is used.

When evaluating an air purifier, it helps to ask a few simple questions:

\nWhat pollutants is it actually designed to address? A good purifier should clearly state whether it is built for particles, gases and odors, or both. Particle filters address things like dust, pollen, smoke, and ultrafine particles; gases and VOCs require sorbent media such as activated carbon.
\nDoes it physically remove particles from the air? This is one of the clearest signs of a strong air-cleaning approach. Filtration-based systems trap particles in filter media instead of trying to alter them in the air or push them onto nearby surfaces.
\nDoes it rely on added reactive chemistry or generate byproducts? If a purifier uses ozone, ionization, or other reactive processes, it’s worth asking what else may be created along the way. A stronger approach is one that removes pollutants without adding new ones to the room.
\nIs its performance based on clear, testable standards? Look beyond broad marketing claims. CADR can help show how quickly a purifier reduces particles in a room under short-term test conditions, but it does not tell you how performance holds up over time. CCM is useful because it reflects how well a purifier continues performing as filters load with pollutants, giving a better picture of long-term effectiveness.

A stronger air purifier claim is usually a simpler one: capture pollutants efficiently, move enough air, and maintain that performance over time.

Conclusion

A HyperHEPA air purifier is a filtration-based air purifier built to capture extremely small airborne particles—well beyond the particle-size range most people associate with standard HEPA. That makes it especially relevant in situations where ultrafine pollution matters, such as wildfire smoke, traffic emissions, and other combustion-related indoor air concerns.

The key idea is simple: don’t look only at whether a purifier says “HEPA.” Look at how small a particle it is designed to capture, how the system is sealed, and whether the overall design supports real-world performance over time.

","what-is-a-hyperhepa-air-purifier","gid://shopify/Article/640810713166","https://shop.iqair.cn/en/blogs/news/what-is-a-hyperhepa-air-purifier","2026-04-14T16:30:40Z",[905,1204,1165,709],"What is a HyperHEPA air purifier?",{"_10":1224,"_202":-5,"_205":1225,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/272887283790","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/B_afb40b16-e8a9-4b1a-89a0-5ee72c36b124.jpg?v=1776184710",{"_1142":1143,"_1144":1227,"_1133":1228,"_1149":1229,"_1151":1230,"_1153":1231,"_1155":1232,"_1001":1233,"_10":1234,"_1159":1235,"_1161":-5,"_1162":1236,"_634":1237,"_598":1238,"_1167":1239},{"_12":1146},{"_1001":1148},"Airborne pollutants can cross continents and oceans, impacting lives far from their source; learn what we can do to control transboundary pollution.","

Airborne pollutants can cross continents and oceans, impacting lives far from their source; learn what we can do to control transboundary pollution.

","Air pollution is often discussed as a local problem. However, our climate system is singular and interconnects the entire planet. The atmosphere operates without political borders, as these are a human construct. Every year, desert dust, wildfire smoke, crop burning haze, and industrial emissions travel hundreds or even thousands of miles from where they began. A pollution event in one region can shape air quality, health risks, and public warnings far away. That makes air pollution more than a domestic policy issue. It is a shared public-health challenge—one that requires collective action—better monitoring, better coordination, and a clearer understanding that the air over one country rarely belongs to that country alone. Air pollution is one of the clearest examples of how environmental risks can move across political boundaries (1). The science, monitoring tools, and policy models to respond already exist—but acting on them requires coordination that matches how the atmosphere actually works. Why air pollution becomes everyone’s problem Wind patterns, seasonal weather systems, and jet streams can carry pollution across regions, continents, and oceans. That means the health effects of a pollution source are not always felt only where emissions begin. This matters because air pollution is already a major global health risk. The World Health Organization estimates that air pollution contributes to around 7 million premature deaths each year, many linked to respiratory and cardiovascular disease (2). The 2025 World Air Quality Report estimated that only 14% of global cities met recommended annual air quality guideline levels. When pollution crosses borders, it can complicate public-health warnings, blur accountability, and expose communities far from the original source. The costs are not only medical. Poor air quality can strain healthcare systems, disrupt schools and travel, reduce productivity, and create major economic losses (3). Yet despite this shared reality, air pollution is still too often treated as a domestic issue rather than a regional or global one. When desert dust travels thousands of miles One of the clearest examples of transboundary pollution is Saharan dust. Each year, powerful dust storms lift vast amounts of particles from North Africa and carry them westward across the Atlantic. In June 2020, a record-breaking Saharan dust plume—widely referred to as the “Godzilla Dust Storm”—traveled more than 5,000 miles, affecting air quality across the Caribbean, parts of the United States, Central America, and northern South America. During events like this, PM2.5 and PM10 concentrations can rise sharply, increasing health risks for people with asthma, cardiovascular disease, and other respiratory vulnerabilities. (4). While Saharan dust can play ecological roles—such as fertilizing parts of the Amazon—its health impacts are also well documented. Studies have found that Saharan dust events can worsen respiratory conditions and are associated with increased respiratory health risks (5). Vulnerable populations, including children, older adults, pregnant people, and those with pre-existing lung disease, may face greater risk during major dust episodes. Saharan dust affects health not only across North Africa, but also in parts of Europe and the Americas. Similar long-range dust transport also affects East Asia, where desert dust can degrade air quality in China, Korea, and Japan. How seasonal haze spreads across borders Though it’s a global practice, crop burning is particularly acute in South Asia and Southeast Asia. In South Asia, annual crop residue burning primarily in India and Pakistan creates a toxic smog that blankets Nepal, Bangladesh, and beyond (6). This seasonal haze spikes PM2.5 levels, leading to school closures, flight cancellations, and thousands of hospitalizations for respiratory distress. The 2013 “Airpocalypse” in China, meanwhile, saw PM2.5 concentrations reach extreme levels and reportedly drove Beijing Children’s Hospital to treat about 7,000 patients a day (7). The smog didn’t stop at China’s borders; it drifted into South Korea and Japan and prompted calls for greater regional cooperation (8). Airborne pollutants from Chinese factories and power plants can contribute to air quality problems in East Asia and beyond. While China has made progress in reducing domestic pollution—sulfur dioxide emissions have dropped by 75% between 2013 and 2020—the transboundary nature of the issue demands broader solutions (9). Wildfire smoke travels farther than most people think Wildfire smoke is another reminder that air pollution does not stop at the border. During Canada’s record-setting 2023 wildfire season, releasing an estimated 647 teragrams of carbon. The smoke spread across North America and, at times, across the Atlantic into Europe (10)(11). That smoke degraded air quality far from the fires themselves, exposing millions to elevated PM2.5 levels and producing hazy skies in cities thousands of miles away (12). Australia’s 2019–2020 bushfires offered another striking example. Smoke from those fires circled much of the globe and was detected as far away as South America and Antarctica (13). Greater regional planning and cooperation for wildfire season and its accompanying smoke is needed. As the climate warms, many regions are seeing longer and more intense wildfire seasons. In some places, fires are burning hotter, spreading farther, and producing more smoke over longer periods of time. Rather than blaming neighbors, greater regional planning and cooperation for wildfire season and its accompanying smoke is needed. Why national policy alone is not enough National air quality laws remain essential. They help countries regulate emissions, set standards, and build enforcement systems. But they are not enough on their own when pollution regularly travels beyond the jurisdiction that produced it. That is the central mismatch in transboundary air pollution: the atmosphere moves freely, while policy usually stops at the border. Domestic laws such as the U.S. Clean Air Act remain essential for source control and enforceable standards, but they cannot fully address pollution that regularly moves across jurisdictions (14). The ASEAN Agreement on Transboundary Haze Pollution, signed in 2002, remains one of the few regional agreements focused specifically on cross-border air pollution (15). While it has fostered some cooperation—such as shared monitoring and emergency response protocols—its effectiveness is limited by national sovereignty concerns and uneven enforcement. Cross-border monitoring systems, regional directives, and international clean air initiatives offer stronger models for cooperation—especially when they combine shared data, common standards, and earlier public-health warnings (16)(17)(18). Without that kind of coordination, health warnings can come later, accountability can weaken, and communities downwind are left to manage risks they did not create. Collective action needed across borders Transboundary air pollution is a large-scale problem, but not an abstract one. The most effective responses combine earlier warnings, stronger regional coordination, and practical steps that reduce exposure while cutting pollution at the source. What governments can do Expanded cross-border data sharing, real-time air quality monitoring, and unified standards can improve public health responses. Strengthen legally binding treaties and agreements with clear accountability mechanisms to reduce emissions at the source. By investing in renewable energy and sustainable agriculture, governments can cut pollution before it crosses borders. Enforce existing legislation and treaties to curtail industrial pollution and crop burning practices. What individuals can do Urge leaders to prioritize global air quality in climate and health agendas. Citizen-led air quality monitoring initiatives can help communities spot poor air days sooner and make better-informed choices, such as staying indoors or closing windows. Downloading a free air quality app can provide alerts when pollution levels rise On high-pollution days, running an air purifier and wearing a mask while outdoors can provide essential personal protection. Conclusion Air pollution may begin locally, but it often does not stay local. Dust, smoke, and industrial emissions can travel far beyond their source, exposing communities that had no role in creating them. That is why transboundary pollution requires more than national action alone. It requires shared data, earlier warnings, stronger regional coordination, and policies that reflect how the atmosphere actually works. The air people breathe is shaped not only by what happens nearby, but also by what happens upwind, across borders, and sometimes across oceans. Cleaner air depends on treating that reality as a shared responsibility.","

Air pollution is often discussed as a local problem. However, our climate system is singular and interconnects the entire planet. The atmosphere operates without political borders, as these are a human construct.

Every year, desert dust, wildfire smoke, crop burning haze, and industrial emissions travel hundreds or even thousands of miles from where they began. A pollution event in one region can shape air quality, health risks, and public warnings far away.

That makes air pollution more than a domestic policy issue. It is a shared public-health challenge—one that requires collective action—better monitoring, better coordination, and a clearer understanding that the air over one country rarely belongs to that country alone.

Air pollution is one of the clearest examples of how environmental risks can move across political boundaries (1). The science, monitoring tools, and policy models to respond already exist—but acting on them requires coordination that matches how the atmosphere actually works.

Why air pollution becomes everyone’s problem

Wind patterns, seasonal weather systems, and jet streams can carry pollution across regions, continents, and oceans. That means the health effects of a pollution source are not always felt only where emissions begin.

This matters because air pollution is already a major global health risk. The World Health Organization estimates that air pollution contributes to around 7 million premature deaths each year, many linked to respiratory and cardiovascular disease (2).

The 2025 World Air Quality Report estimated that only 14% of global cities met recommended annual air quality guideline levels. When pollution crosses borders, it can complicate public-health warnings, blur accountability, and expose communities far from the original source.

The costs are not only medical. Poor air quality can strain healthcare systems, disrupt schools and travel, reduce productivity, and create major economic losses (3). Yet despite this shared reality, air pollution is still too often treated as a domestic issue rather than a regional or global one.

When desert dust travels thousands of miles

One of the clearest examples of transboundary pollution is Saharan dust. Each year, powerful dust storms lift vast amounts of particles from North Africa and carry them westward across the Atlantic.

In June 2020, a record-breaking Saharan dust plume—widely referred to as the “Godzilla Dust Storm”—traveled more than 5,000 miles, affecting air quality across the Caribbean, parts of the United States, Central America, and northern South America. During events like this, PM2.5 and PM10 concentrations can rise sharply, increasing health risks for people with asthma, cardiovascular disease, and other respiratory vulnerabilities. (4).

While Saharan dust can play ecological roles—such as fertilizing parts of the Amazon—its health impacts are also well documented. Studies have found that Saharan dust events can worsen respiratory conditions and are associated with increased respiratory health risks (5). Vulnerable populations, including children, older adults, pregnant people, and those with pre-existing lung disease, may face greater risk during major dust episodes.

Saharan dust affects health not only across North Africa, but also in parts of Europe and the Americas. Similar long-range dust transport also affects East Asia, where desert dust can degrade air quality in China, Korea, and Japan.

How seasonal haze spreads across borders

Though it’s a global practice, crop burning is particularly acute in South Asia and Southeast Asia.

In South Asia, annual crop residue burning primarily in India and Pakistan creates a toxic smog that blankets Nepal, Bangladesh, and beyond (6). This seasonal haze spikes PM2.5 levels, leading to school closures, flight cancellations, and thousands of hospitalizations for respiratory distress.

The 2013 “Airpocalypse” in China, meanwhile, saw PM2.5 concentrations reach extreme levels and reportedly drove Beijing Children’s Hospital to treat about 7,000 patients a day (7). The smog didn’t stop at China’s borders; it drifted into South Korea and Japan and prompted calls for greater regional cooperation (8).

Airborne pollutants from Chinese factories and power plants can contribute to air quality problems in East Asia and beyond. While China has made progress in reducing domestic pollution—sulfur dioxide emissions have dropped by 75% between 2013 and 2020—the transboundary nature of the issue demands broader solutions (9).

Wildfire smoke travels farther than most people think

Wildfire smoke is another reminder that air pollution does not stop at the border. During Canada’s record-setting 2023 wildfire season, releasing an estimated 647 teragrams of carbon. The smoke spread across North America and, at times, across the Atlantic into Europe (10)(11).

That smoke degraded air quality far from the fires themselves, exposing millions to elevated PM2.5 levels and producing hazy skies in cities thousands of miles away (12).

Australia’s 2019–2020 bushfires offered another striking example. Smoke from those fires circled much of the globe and was detected as far away as South America and Antarctica (13).

Greater regional planning and cooperation for wildfire season and its accompanying smoke is needed.

As the climate warms, many regions are seeing longer and more intense wildfire seasons. In some places, fires are burning hotter, spreading farther, and producing more smoke over longer periods of time.

Rather than blaming neighbors, greater regional planning and cooperation for wildfire season and its accompanying smoke is needed.

Why national policy alone is not enough

National air quality laws remain essential. They help countries regulate emissions, set standards, and build enforcement systems. But they are not enough on their own when pollution regularly travels beyond the jurisdiction that produced it.

That is the central mismatch in transboundary air pollution: the atmosphere moves freely, while policy usually stops at the border. Domestic laws such as the U.S. Clean Air Act remain essential for source control and enforceable standards, but they cannot fully address pollution that regularly moves across jurisdictions (14).

The ASEAN Agreement on Transboundary Haze Pollution, signed in 2002, remains one of the few regional agreements focused specifically on cross-border air pollution (15). While it has fostered some cooperation—such as shared monitoring and emergency response protocols—its effectiveness is limited by national sovereignty concerns and uneven enforcement.

Cross-border monitoring systems, regional directives, and international clean air initiatives offer stronger models for cooperation—especially when they combine shared data, common standards, and earlier public-health warnings (16)(17)(18). Without that kind of coordination, health warnings can come later, accountability can weaken, and communities downwind are left to manage risks they did not create.

Collective action needed across borders

Transboundary air pollution is a large-scale problem, but not an abstract one. The most effective responses combine earlier warnings, stronger regional coordination, and practical steps that reduce exposure while cutting pollution at the source.

What governments can do

Expanded cross-border data sharing, real-time air quality monitoring, and unified standards can improve public health responses.
Strengthen legally binding treaties and agreements with clear accountability mechanisms to reduce emissions at the source.
By investing in renewable energy and sustainable agriculture, governments can cut pollution before it crosses borders.
Enforce existing legislation and treaties to curtail industrial pollution and crop burning practices.

What individuals can do

Urge leaders to prioritize global air quality in climate and health agendas.
\nCitizen-led air quality monitoring initiatives can help communities spot poor air days sooner and make better-informed choices, such as staying indoors or closing windows.
\nDownloading a free air quality app can provide alerts when pollution levels rise
On high-pollution days, running an air purifier and wearing a mask while outdoors can provide essential personal protection.

Conclusion

Air pollution may begin locally, but it often does not stay local. Dust, smoke, and industrial emissions can travel far beyond their source, exposing communities that had no role in creating them.

That is why transboundary pollution requires more than national action alone. It requires shared data, earlier warnings, stronger regional coordination, and policies that reflect how the atmosphere actually works.

The air people breathe is shaped not only by what happens nearby, but also by what happens upwind, across borders, and sometimes across oceans. Cleaner air depends on treating that reality as a shared responsibility.

","one-planet-one-climate-system","gid://shopify/Article/641100578894","https://shop.iqair.cn/en/blogs/news/one-planet-one-climate-system","2026-04-13T16:37:20Z",[1204,694,1165],"One planet, one climate system: Transboundary pollution requires collective action",{"_10":1240,"_202":-5,"_205":1241,"_207":1171,"_203":1172},"gid://shopify/ArticleImage/272868999246","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/A_14d48647-0d54-411d-9484-c7942b27563b.jpg?v=1776098281",{"_1142":1143,"_1144":1243,"_1133":1244,"_1149":1245,"_1151":1246,"_1153":1247,"_1155":1248,"_1001":1249,"_10":1250,"_1159":1251,"_1161":-5,"_1162":1252,"_634":1253,"_598":1254,"_1167":1255},{"_12":1146},{"_1001":1148},"See how three pivotal studies changed what the world knows about air pollution—and why that science still matters today.","

See how three pivotal studies changed what the world knows about air pollution—and why that science still matters today.

","Air quality science didn’t advance all at once. It changed through a series of breakthroughs—moments when scientists were able to prove what polluted air was doing to people, where it was coming from, and why it mattered. Some of the most important discoveries began with simple but urgent questions: Why were people getting sick? What was in the air? And could those risks be prevented? Three major turning points reshaped how the world understands air pollution today. Together, they helped transform air quality from an invisible environmental concern into a measurable public health issue—one that continues to guide policy, research, and how communities protect themselves. Scientific breakthroughs only matter if they are shared and acted on. When evidence is delayed, ignored, or dismissed, the consequences can last for years. The history of air quality science shows that progress depends not just on discovery—but on whether societies listen and respond. 1930-1952: Deadly fogs spark modern air quality research In the early 20th century, air pollution was widespread—but poorly understood. That changed when a series of deadly events forced scientists and governments to confront its health impacts. In 1930, a dense industrial fog settled over the Meuse Valley in Belgium. The combination of temperature inversion, trapped emissions, and industrial activity led to 64 deaths. Autopsies found severe respiratory damage, including excess mucus, hemorrhaging and fluid in the lungs. Investigators linked the fatalities to sulfur dioxide and other industrial pollutants, and the findings were published in the Bulletin de l'Académie royale de médecine de Belgique in 1931. It was one of the first connect air pollution with mortality (1). Despite these findings, Belgian authorities laid the blame on chance and local conditions. Ignoring the warnings, other similar, preventable disasters would unfold in later decades in both America and England. Nearly two decades later, a similar disaster struck Donora, Pennsylvania. In October 1948, a temperature inversion trapped emissions from steel and zinc plants, creating a thick smog that killed 20 people and sickened thousands (2). This time, researchers conducted one of the first large-scale epidemiological studies of air pollution, confirming the role of industrial emissions in the disaster. The research team’s findings sparked public outrage and would lay the groundwork for the United States’ Clean Air Act. Then in 1952, London’s Great Smog caused at least 4,000 deaths in just a few days (3). Investigations identified coal burning as the primary source, leading to the United Kingdom’s Clean Air Acts (4). Together, these events and the resulting studies marked a turning point. They showed that polluted air was not just unpleasant—it could be deadly. And they laid the foundation for modern air quality regulation and public health research. 1950s: Dr. Haagen-Smit cracks the LA smog code By the 1940s, Los Angeles was known for its thick, eye-stinging smog—but no one fully understood what was causing it. At the time, many believed smog came primarily from industrial emissions. But Biochemistry professor Dr. Arie Haagen-Smit began a series of experiments in 1948 that revealed smog’s true chemistry. He showed that hydrocarbons and nitrogen dioxide could react in sunlight to form ozone, helping explain the toxic photochemical smog blanketing Los Angeles. His research showed that cars—major emitters of both hydrocarbons and nitrogen dioxide—were central to the city’s air pollution (5). This revelation led to the first vehicle emissions standards (6). Haagen-Smit’s work helped clean the air and transform public perception, forcing policymakers to confront human activity’s role in environmental degradation. 1993: The “Harvard Six Cities” study and the toll of dirty air By the early 1990s, scientists had already established that extreme pollution events could be deadly. The next question was more subtle—and more important for everyday life: what about long-term exposure to lower levels of pollution? In 1993, researchers published what came to be known as the “Harvard Six Cities” study in the New England Journal of Medicine (7)(8). The study followed over 8,000 adults in six U.S. cities for up to 16 years. The participants lived in cities with varying air pollution concentrations. Researchers followed participants over time—including through mailed follow-up cards—to compare survival rates across cities with different pollution levels. The study findings linked long-term exposure to PM2.5—even at low to moderate levels then considered “safe”—to premature death. PM2.5 is particulate matter measuring 2.5 microns in diameter or smaller. The study’s results were confirmed in both a reanalysis of the original study and numerous additional studies. The Harvard Six Cities study would go on to directly influence the WHO’s air quality guidelines (9). The takeaway These breakthroughs changed more than scientific understanding—they changed how societies respond to air pollution. From proving that polluted air could cause immediate harm, to identifying the sources of modern smog, to revealing the long-term risks of fine particle exposure, each discovery helped shape the policies and protections people rely on today. They also offer a reminder: today’s air quality challenges—from microplastics to climate-driven pollution—will require the same combination of curiosity, evidence, and public accountability. Clean air progress begins with research that makes invisible risks visible and actionable. When science is trusted, shared, and turned into policy, it becomes one of the most powerful tools for protecting public health. Observed each year on April 7, World Health Day highlights the importance of science, prevention, and systems that help people live healthier lives. Air quality science is one of the clearest examples of that principle in action—and one of the strongest reminders that healthier futures depend on the evidence we choose to act on.","

Air quality science didn’t advance all at once. It changed through a series of breakthroughs—moments when scientists were able to prove what polluted air was doing to people, where it was coming from, and why it mattered.

Some of the most important discoveries began with simple but urgent questions: Why were people getting sick? What was in the air? And could those risks be prevented?

Three major turning points reshaped how the world understands air pollution today. Together, they helped transform air quality from an invisible environmental concern into a measurable public health issue—one that continues to guide policy, research, and how communities protect themselves.

Scientific breakthroughs only matter if they are shared and acted on. When evidence is delayed, ignored, or dismissed, the consequences can last for years. The history of air quality science shows that progress depends not just on discovery—but on whether societies listen and respond.

1930-1952: Deadly fogs spark modern air quality research

In the early 20th century, air pollution was widespread—but poorly understood. That changed when a series of deadly events forced scientists and governments to confront its health impacts.

In 1930, a dense industrial fog settled over the Meuse Valley in Belgium. The combination of temperature inversion, trapped emissions, and industrial activity led to 64 deaths. Autopsies found severe respiratory damage, including excess mucus, hemorrhaging and fluid in the lungs. Investigators linked the fatalities to sulfur dioxide and other industrial pollutants, and the findings were published in the Bulletin de l'Académie royale de médecine de Belgique in 1931. It was one of the first connect air pollution with mortality (1).

Despite these findings, Belgian authorities laid the blame on chance and local conditions. Ignoring the warnings, other similar, preventable disasters would unfold in later decades in both America and England.

Nearly two decades later, a similar disaster struck Donora, Pennsylvania. In October 1948, a temperature inversion trapped emissions from steel and zinc plants, creating a thick smog that killed 20 people and sickened thousands (2). This time, researchers conducted one of the first large-scale epidemiological studies of air pollution, confirming the role of industrial emissions in the disaster. The research team’s findings sparked public outrage and would lay the groundwork for the United States’ Clean Air Act.

Then in 1952, London’s Great Smog caused at least 4,000 deaths in just a few days (3). Investigations identified coal burning as the primary source, leading to the United Kingdom’s Clean Air Acts (4).

Together, these events and the resulting studies marked a turning point. They showed that polluted air was not just unpleasant—it could be deadly. And they laid the foundation for modern air quality regulation and public health research.

1950s: Dr. Haagen-Smit cracks the LA smog code

By the 1940s, Los Angeles was known for its thick, eye-stinging smog—but no one fully understood what was causing it.

At the time, many believed smog came primarily from industrial emissions. But Biochemistry professor Dr. Arie Haagen-Smit began a series of experiments in 1948 that revealed smog’s true chemistry. He showed that hydrocarbons and nitrogen dioxide could react in sunlight to form ozone, helping explain the toxic photochemical smog blanketing Los Angeles. His research showed that cars—major emitters of both hydrocarbons and nitrogen dioxide—were central to the city’s air pollution (5).

This revelation led to the first vehicle emissions standards (6). Haagen-Smit’s work helped clean the air and transform public perception, forcing policymakers to confront human activity’s role in environmental degradation.

1993: The “Harvard Six Cities” study and the toll of dirty air

By the early 1990s, scientists had already established that extreme pollution events could be deadly. The next question was more subtle—and more important for everyday life: what about long-term exposure to lower levels of pollution?

In 1993, researchers published what came to be known as the “Harvard Six Cities” study in the New England Journal of Medicine (7)(8). The study followed over 8,000 adults in six U.S. cities for up to 16 years. The participants lived in cities with varying air pollution concentrations. Researchers followed participants over time—including through mailed follow-up cards—to compare survival rates across cities with different pollution levels.

The study findings linked long-term exposure to PM2.5—even at low to moderate levels then considered “safe”—to premature death. PM2.5 is particulate matter measuring 2.5 microns in diameter or smaller.

The study’s results were confirmed in both a reanalysis of the original study and numerous additional studies. The Harvard Six Cities study would go on to directly influence the WHO’s air quality guidelines (9).

The takeaway

These breakthroughs changed more than scientific understanding—they changed how societies respond to air pollution.

From proving that polluted air could cause immediate harm, to identifying the sources of modern smog, to revealing the long-term risks of fine particle exposure, each discovery helped shape the policies and protections people rely on today.

They also offer a reminder: today’s air quality challenges—from microplastics to climate-driven pollution—will require the same combination of curiosity, evidence, and public accountability.

Clean air progress begins with research that makes invisible risks visible and actionable. When science is trusted, shared, and turned into policy, it becomes one of the most powerful tools for protecting public health.

Observed each year on April 7, World Health Day highlights the importance of science, prevention, and systems that help people live healthier lives. Air quality science is one of the clearest examples of that principle in action—and one of the strongest reminders that healthier futures depend on the evidence we choose to act on.

","how-three-major-studies-changed-what-we-know-about-air-pollution","gid://shopify/Article/641011089486","https://shop.iqair.cn/en/blogs/news/how-three-major-studies-changed-what-we-know-about-air-pollution","2026-04-06T16:31:58Z",[1204,699,1165,709],"How three major studies changed what we know about air pollution",{"_10":1256,"_202":-5,"_205":1257,"_207":1171,"_203":1172},"gid://shopify/ArticleImage/272791240782","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/Blog-D-839x674_dec45394-455e-4a8e-b290-9c912a92040c.jpg?v=1775494803",{"_1142":1143,"_1144":1259,"_1133":1260,"_1149":1261,"_1151":1262,"_1153":1263,"_1155":1264,"_1001":1265,"_10":1266,"_1159":1267,"_1161":-5,"_1162":1268,"_634":1269,"_598":1270,"_1167":1271},{"_12":1146},{"_1001":1148},"Greenhouse gases accelerate climate change, which in turn creates poor air quality. Learn more.","

Greenhouse gases accelerate climate change, which in turn creates poor air quality. Learn more.

","Human-caused climate change is driven by greenhouse gas emissions—and it is already affecting health and safety in measurable ways. (1). As greenhouse gas concentrations rise, the climate shifts in ways that increase heat, intensify extreme weather, and raise air-quality risks. Those impacts are not experienced equally: communities with fewer resources often have less protection from heat, smoke, and other climate-related hazards. That’s why climate solutions and air-quality protections are often linked—and why equity matters when planning who gets protection, cooling, clean indoor air, and early warning systems first. Greenhouse gases aren’t the same pollutants tracked in the daily Air Quality Index (AQI). But they set the conditions that influence air quality—like hotter temperatures, longer ozone seasons, and more wildfire smoke—so they affect what we breathe in everyday life. What are greenhouse gases? Greenhouse gases trap heat in the Earth’s atmosphere, contributing to the “greenhouse effect” that warms the planet and drives climate change. They do this by absorbing some of the heat energy the Earth gives off, making the atmosphere act a bit more like a thicker blanket. EPA reports greenhouse gas emissions in carbon dioxide–equivalent (CO2e). CO2e puts different gases on the same scale so their impact can be compared (2). To calculate CO2e, EPA multiplies the amount of a gas by its global warming potential (GWP). GWP shows how much heat 1 metric ton of a gas traps over 100 years compared with 1 metric ton of carbon dioxide (CO2). For example, methane has a 100-year global warming potential of about 28–30 under IPCC AR5. That means 1 metric ton of methane traps roughly 28–30 times more heat over 100 years than 1 metric ton of carbon dioxide (CO2). So if a facility emits 10 metric tons of methane, that equals about 280–300 metric tons of CO2e. The U.S. Inventory uses metric units and 100-year GWPs from the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (AR5) Not all greenhouse gases behave the same. Three factors determine how much they warm the planet: How much of it is in the air (its concentration) How long it lasts in the atmosphere How strongly it traps heat per ton—captured by GWP Scientists measure greenhouse gases in parts per million (ppm), parts per billion (ppb), and parts per trillion (ppt). These units show how much of a gas is present in the air. One ppm is about like one drop of water mixed into about 13 gallons of liquid—roughly the size of a compact car’s fuel tank. Some greenhouse gases last only a few years. Others stay in the atmosphere for thousands of years. Because they persist and mix throughout the atmosphere, their concentrations are broadly similar around the world, no matter where they were emitted. Examples of greenhouse gases include (3)(4); Carbon dioxide (CO2) Methane (CH4) Nitrous oxide (N2O) Industrial gases and fluorinated gases (or F-gases) A quick “who’s who” (and where they come from): Carbon dioxide (CO2) enters the atmosphere through burning fossil fuels (coal, natural gas, and oil), but also from solid waste, trees and other biological materials, and chemical reactions such as cement production. CO2 is also removed (“sequestered”) when plants absorb it as part of the biological carbon cycle. Methane (CH4) is emitted during the production and transport of coal, natural gas, and oil. It also comes from livestock and other agricultural practices, land use, seeps into the atmosphere from abandoned and orphaned oil and gas wells, and the decay of organic waste in municipal solid waste landfills. Nitrous oxide (N2O) is emitted during agricultural, land-use, and industrial activities; combustion of fossil fuels and solid waste; and during wastewater treatment. Fluorinated gases include hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulfur hexafluoride (SF6), and nitrogen trifluoride (NF3). They’re synthetic gases used in a range of household, commercial, and industrial applications—often as substitutes for ozone-depleting substances. They’re typically emitted in smaller quantities than CO2, but many have very high GWPs—often thousands to tens of thousands—so small leaks can pack an outsized warming punch. Note: Other substances in the atmosphere—like water vapor, ground-level ozone, and tiny particles/aerosols—can also influence climate, even though greenhouse gas inventories focus on the main heat-trapping gases above. Where do greenhouse gases come from? Greenhouse gases are emitted from both natural sources and human activity. However, human activity since the industrial period (in the mid-19th century) has dramatically increased the amount of these gases in our atmosphere, significantly contributing to global warming and subsequent climate change. Human activity since the industrial period has greatly increased the amount of these gases in our atmosphere, significantly contributing to global warming and subsequent climate change. Natural sources of greenhouse gases include (5)(6): Decomposition of organic matter Methane emissions from wetlands Respiration Soil processes Human activities generate greenhouse gas emissions. Sectors that significantly contribute to emissions include (7): Burning fossil fuels (coal, oil, and natural gas) Transportation Electricity generation Industrial processes Commercial and residential heating Agriculture (including livestock and crop production) Land use changes (e.g., deforestation) Nitrogen-based fertilizers Who emits the most greenhouse gases? Global greenhouse gas emissions are unevenly distributed, but they’re a shared atmosphere problem—because long-lived greenhouse gases mix globally over time. According to the 2025 Emissions Database for Global Atmospheric Research (EDGAR), the world’s largest emitters in 2024 were China, the United States, India, the EU27, Russia, and Indonesia. Together, these emitters accounted for 61.8% of global greenhouse gas emissions in 2024, alongside 51.4% of global population and 62.5% of global GDP. Globally, EDGAR estimates total greenhouse gas emissions (excluding land use, land-use change, and forestry) reached 53.2 Gt CO₂-equivalent in 2024, an increase of 1.3% compared with 2023 (8). This matters for air quality because the same sectors driving greenhouse gas emissions—especially fossil fuel use in power, industry, transport, and buildings—can also contribute to the air pollutants that show up locally as PM2.5 and ozone. The effects of greenhouse gases While individual greenhouse gases can directly harm human health—such as carbon dioxide in poorly ventilated spaces—their greatest threat comes from their collective role in driving climate change. By intensifying the greenhouse effect, these gases are destabilizing Earth’s climate, with far-reaching consequences for both the planet and human societies. How greenhouse gases can worsen air quality Here’s the simplest way to think about it: greenhouse gases don’t usually “spike” in a neighborhood the way smoke can, but they can increase the frequency and intensity of air-quality stressors. Hotter days can mean more ozone: Ground-level ozone forms more readily in heat and sunlight, increasing the chance of unhealthy ozone days. Higher wildfire smoke risk in some regions: Warmer, drier conditions can increase wildfire risk, and wildfire smoke can drive major PM2.5 spikes. More “stagnation” events: Some weather patterns linked to a warming climate can trap pollutants closer to the ground, keeping dirty air around longer. By warming the planet, greenhouse gases contribute to a cascade of environmental changes that affect people, ecosystems, and economies. Rising global temperatures mean that ice caps and glaciers are melting, causing sea levels to rise and potentially displace huge numbers of people. Other consequences of climate change include (9): Increased likelihood and severity of forest fires Extended droughts and heat waves Increased flooding and storm intensity Water scarcity and declining water quality Loss of biodiversity and collapse of ecosystems Disruption of global food systems and agricultural productivity Climate change is also predicted to increase concentrations and lingering durations of ground-level ozone pollution, further degrading air quality and public health. Some climate impacts become much harder to reverse once certain thresholds are crossed. In 2025, one widely covered assessment warned that warm-water coral reefs face especially high risk as warming continues (10). Climate change and environmental justice When air quality worsens because of climate change-related heat, smoke, or ozone, the people most affected are often those with the least access to healthcare, clean indoor spaces, and resources to adapt. Climate change fueled by greenhouse gases is not just an environmental issue—it is a profound matter of justice. The communities least responsible for greenhouse gas emissions, including low-income populations, Indigenous groups, and people in the Global South, are often the most vulnerable to its impacts (11)(12)(13). These groups face heightened risks from extreme weather, food and water insecurity, displacement, and health crises, despite contributing the least to the problem. Systemic inequities, such as limited access to resources, inadequate infrastructure, and historical marginalization, amplify these disparities. Addressing greenhouse gases and climate change requires centering equity: true progress demands both reducing greenhouse gas emissions and rectifying the injustices that make climate change a multiplier of inequality. Conclusion Greenhouse gases warm the planet—and that warming can worsen air quality by increasing ozone risk and intensifying wildfire smoke in many regions. The most effective path forward combines emissions reductions (especially cutting sources of CO₂ and methane) with practical air-quality protection for individuals and communities: monitor local conditions, ventilate when outdoor air is clean, and use filtration during smoke or high-ozone periods.","

Human-caused climate change is driven by greenhouse gas emissions—and it is already affecting health and safety in measurable ways. (1).

As greenhouse gas concentrations rise, the climate shifts in ways that increase heat, intensify extreme weather, and raise air-quality risks. Those impacts are not experienced equally: communities with fewer resources often have less protection from heat, smoke, and other climate-related hazards. That’s why climate solutions and air-quality protections are often linked—and why equity matters when planning who gets protection, cooling, clean indoor air, and early warning systems first.

Greenhouse gases aren’t the same pollutants tracked in the daily Air Quality Index (AQI). But they set the conditions that influence air quality—like hotter temperatures, longer ozone seasons, and more wildfire smoke—so they affect what we breathe in everyday life.

What are greenhouse gases?

Greenhouse gases trap heat in the Earth’s atmosphere, contributing to the “greenhouse effect” that warms the planet and drives climate change. They do this by absorbing some of the heat energy the Earth gives off, making the atmosphere act a bit more like a thicker blanket.

EPA reports greenhouse gas emissions in carbon dioxide–equivalent (CO2e). CO2e puts different gases on the same scale so their impact can be compared (2).

To calculate CO2e, EPA multiplies the amount of a gas by its global warming potential (GWP). GWP shows how much heat 1 metric ton of a gas traps over 100 years compared with 1 metric ton of carbon dioxide (CO2).

For example, methane has a 100-year global warming potential of about 28–30 under IPCC AR5. That means 1 metric ton of methane traps roughly 28–30 times more heat over 100 years than 1 metric ton of carbon dioxide (CO2). So if a facility emits 10 metric tons of methane, that equals about 280–300 metric tons of CO2e.

The U.S. Inventory uses metric units and 100-year GWPs from the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (AR5)

Not all greenhouse gases behave the same. Three factors determine how much they warm the planet:

How much of it is in the air (its concentration)
How long it lasts in the atmosphere
How strongly it traps heat per ton—captured by GWP

Scientists measure greenhouse gases in parts per million (ppm), parts per billion (ppb), and parts per trillion (ppt). These units show how much of a gas is present in the air.

One ppm is about like one drop of water mixed into about 13 gallons of liquid—roughly the size of a compact car’s fuel tank.

Some greenhouse gases last only a few years. Others stay in the atmosphere for thousands of years. Because they persist and mix throughout the atmosphere, their concentrations are broadly similar around the world, no matter where they were emitted.

Examples of greenhouse gases include (3)(4);

\nCarbon dioxide (CO2)
Methane (CH4)
Nitrous oxide (N2O)
Industrial gases and fluorinated gases (or F-gases)

A quick “who’s who” (and where they come from):

\nCarbon dioxide (CO2) enters the atmosphere through burning fossil fuels (coal, natural gas, and oil), but also from solid waste, trees and other biological materials, and chemical reactions such as cement production. CO2 is also removed (“sequestered”) when plants absorb it as part of the biological carbon cycle.
\nMethane (CH4) is emitted during the production and transport of coal, natural gas, and oil. It also comes from livestock and other agricultural practices, land use, seeps into the atmosphere from abandoned and orphaned oil and gas wells, and the decay of organic waste in municipal solid waste landfills.
\nNitrous oxide (N2O) is emitted during agricultural, land-use, and industrial activities; combustion of fossil fuels and solid waste; and during wastewater treatment.
\nFluorinated gases include hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulfur hexafluoride (SF6), and nitrogen trifluoride (NF3). They’re synthetic gases used in a range of household, commercial, and industrial applications—often as substitutes for ozone-depleting substances. They’re typically emitted in smaller quantities than CO2, but many have very high GWPs—often thousands to tens of thousands—so small leaks can pack an outsized warming punch.

Note: Other substances in the atmosphere—like water vapor, ground-level ozone, and tiny particles/aerosols—can also influence climate, even though greenhouse gas inventories focus on the main heat-trapping gases above.

Where do greenhouse gases come from?

Greenhouse gases are emitted from both natural sources and human activity. However, human activity since the industrial period (in the mid-19th century) has dramatically increased the amount of these gases in our atmosphere, significantly contributing to global warming and subsequent climate change.

Human activity since the industrial period has greatly increased the amount of these gases in our atmosphere, significantly contributing to global warming and subsequent climate change.

Natural sources of greenhouse gases include (5)(6):

Decomposition of organic matter
Methane emissions from wetlands
Respiration
Soil processes

Human activities generate greenhouse gas emissions. Sectors that significantly contribute to emissions include (7):

Burning fossil fuels (coal, oil, and natural gas)
Transportation
Electricity generation
Industrial processes
Commercial and residential heating
Agriculture (including livestock and crop production)
Land use changes (e.g., deforestation)
Nitrogen-based fertilizers

Who emits the most greenhouse gases?

Global greenhouse gas emissions are unevenly distributed, but they’re a shared atmosphere problem—because long-lived greenhouse gases mix globally over time.

According to the 2025 Emissions Database for Global Atmospheric Research (EDGAR), the world’s largest emitters in 2024 were China, the United States, India, the EU27, Russia, and Indonesia. Together, these emitters accounted for 61.8% of global greenhouse gas emissions in 2024, alongside 51.4% of global population and 62.5% of global GDP.

Globally, EDGAR estimates total greenhouse gas emissions (excluding land use, land-use change, and forestry) reached 53.2 Gt CO₂-equivalent in 2024, an increase of 1.3% compared with 2023 (8).

This matters for air quality because the same sectors driving greenhouse gas emissions—especially fossil fuel use in power, industry, transport, and buildings—can also contribute to the air pollutants that show up locally as PM2.5 and ozone.

The effects of greenhouse gases

While individual greenhouse gases can directly harm human health—such as carbon dioxide in poorly ventilated spaces—their greatest threat comes from their collective role in driving climate change.

By intensifying the greenhouse effect, these gases are destabilizing Earth’s climate, with far-reaching consequences for both the planet and human societies.

How greenhouse gases can worsen air quality

Here’s the simplest way to think about it: greenhouse gases don’t usually “spike” in a neighborhood the way smoke can, but they can increase the frequency and intensity of air-quality stressors.

\nHotter days can mean more ozone: Ground-level ozone forms more readily in heat and sunlight, increasing the chance of unhealthy ozone days.
\nHigher wildfire smoke risk in some regions: Warmer, drier conditions can increase wildfire risk, and wildfire smoke can drive major PM2.5 spikes.
\nMore “stagnation” events: Some weather patterns linked to a warming climate can trap pollutants closer to the ground, keeping dirty air around longer.
\n

$\"\"$

By warming the planet, greenhouse gases contribute to a cascade of environmental changes that affect people, ecosystems, and economies. Rising global temperatures mean that ice caps and glaciers are melting, causing sea levels to rise and potentially displace huge numbers of people.

Other consequences of climate change include (9):

Increased likelihood and severity of forest fires
Extended droughts and heat waves\n
\nIncreased flooding and storm intensity\n
Water scarcity and declining water quality
Loss of biodiversity and collapse of ecosystems
Disruption of global food systems and agricultural productivity

Climate change is also predicted to increase concentrations and lingering durations of ground-level ozone pollution, further degrading air quality and public health.

Some climate impacts become much harder to reverse once certain thresholds are crossed. In 2025, one widely covered assessment warned that warm-water coral reefs face especially high risk as warming continues (10).

Climate change and environmental justice

When air quality worsens because of climate change-related heat, smoke, or ozone, the people most affected are often those with the least access to healthcare, clean indoor spaces, and resources to adapt.

Climate change fueled by greenhouse gases is not just an environmental issue—it is a profound matter of justice.

The communities least responsible for greenhouse gas emissions, including low-income populations, Indigenous groups, and people in the Global South, are often the most vulnerable to its impacts (11)(12)(13). These groups face heightened risks from extreme weather, food and water insecurity, displacement, and health crises, despite contributing the least to the problem.

Systemic inequities, such as limited access to resources, inadequate infrastructure, and historical marginalization, amplify these disparities. Addressing greenhouse gases and climate change requires centering equity: true progress demands both reducing greenhouse gas emissions and rectifying the injustices that make climate change a multiplier of inequality.

Conclusion

Greenhouse gases warm the planet—and that warming can worsen air quality by increasing ozone risk and intensifying wildfire smoke in many regions.

The most effective path forward combines emissions reductions (especially cutting sources of CO₂ and methane) with practical air-quality protection for individuals and communities: monitor local conditions, ventilate when outdoor air is clean, and use filtration during smoke or high-ozone periods.

","greenhouse-gases","gid://shopify/Article/564859338830","https://shop.iqair.cn/en/blogs/news/greenhouse-gases","2026-03-11T17:23:44Z",[1204,694,1165,714],"Greenhouse Gases",{"_10":1272,"_202":-5,"_205":1273,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/272255549518","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/A_bb530ce3-5a5b-48f8-96af-4302e20ed0aa.jpg?v=1773251972",{"_1142":1143,"_1144":1275,"_1133":1276,"_1149":1277,"_1151":1278,"_1153":1279,"_1155":1280,"_1001":1281,"_10":1282,"_1159":1283,"_1161":-5,"_1162":1284,"_634":1285,"_598":1286,"_1167":1287},{"_12":1146},{"_1001":1148},"Filter replacement depends on air quality, runtime, and filter type. See typical timelines and signs it’s time to replace a filter.","

Filter replacement depends on air quality, runtime, and filter type. See typical timelines and signs it’s time to replace a filter.

","Air purifier filters should be replaced on a schedule to maintain airflow and cleaning performance, but there isn’t one universal timeline. Replacement frequency depends on filter type (particle vs gas/odor), how many hours the purifier runs, and how much pollution the filter is asked to capture. As a general rule, particle filters are replaced less often than gas/odor filters, and all filters load faster during smoke events, heavy dust periods, or in homes with strong indoor sources (cooking, candles, pets). Filter replacement is often treated like a calendar task, but filters don’t “expire.” They load—sometimes slowly, sometimes suddenly—depending on what’s in the air and operating conditions. Typical filter replacement timelines (rule of thumb) Different filter stages wear out in different ways: Particle filters (HEPA/high-efficiency): often replaced every 6–12 months in typical residential use; sooner during wildfire smoke, heavy dust, or pet-heavy conditions. Gas & odor filters (activated carbon/sorbent media): often replaced every 3–12 months, depending on odor load and media amount; odor “breakthrough” is a common signal. Pre-filters: often cleaned or replaced every 3–18 months, depending on design and exposure. Model-specific guidance matters most because manufacturers size filters and airflow targets differently. IQAir filter replacement guidelines by model Replacement intervals vary by model and indoor conditions. The timelines below reflect typical use; higher pollution, smoke exposure, or continuous high-speed operation can shorten intervals. Replacement estimates assume typical household use; longer daily runtime and higher fan speeds generally shorten intervals, while moderate runtime can extend them. Atem X: HyperHEPA filter set typically lasts 12–36 months, depending on pollution and runtime. Atem X includes washable Impaktor pre-filters and filter-life monitoring to support replacement timing. HealthPro Plus XE: The HyperHEPA filter typically lasts 36–48 months, depending on air quality and usage. The HealthPro Series also includes a PreMax pre-filter (every 12–18 months) and a V5-Cell gas & odor filter (every 15-21 months). Atem Desk: The HyperHEPA filter lasts up to a year with regular use. Atem Car: The HyperHEPA Plus filter is designed for annual replacement, ensuring long-term protection against pollutants in vehicle environments. Note: IQAir smart air purifiers include filter-life tracking and provide replacement prompts based on runtime and operating conditions. Performance claims can be confusing because some metrics describe speed when new, while others better reflect capacity over time. CCM vs. CADR and filter longevity Filter replacement intervals vary across brands and models because long-term performance is not determined by airflow alone. Many products perform well when new, then lose effectiveness more quickly as filters load with particle pollution and gases. Two commonly discussed performance metrics help explain the difference: CADR (Clean Air Delivery Rate) describes how quickly a new air purifier can reduce particles under standardized test conditions. It can be useful for estimating initial cleaning speed, but it does not indicate how long that performance will hold once filters begin to load. CCM (Cumulate Clean Mass) is designed to reflect long-term filtration capacity. It estimates how much particulate matter (and, separately, formaldehyde) a purifier can remove before its clean-air performance drops substantially. In practical terms, CCM helps distinguish between products that may lose efficiency quickly and those built for more stable performance over time. CCM results are typically reported in tiers for: Particulate matter (P levels) Formaldehyde (F levels) Higher tiers generally indicate stronger long-term capacity before performance degradation. In short: CADR is useful for “how fast” a purifier can clean the air when new, while CCM is closer to “how much” pollution it can handle before performance drops. Both can help explain why some filters last longer than others under real-world conditions. Why filter replacement matters As particle filters load, airflow meets increasing resistance as air is pushed through progressively smaller open pathways in the filter media. That increased resistance can reduce the amount of clean air delivered at a given setting and may cause the air purifier to work harder to move air through the system. When clean-air delivery drops, rooms can take longer to clear after cooking, smoke, or high-pollen days; this is often the first sign that performance is slipping. Gas and odor filters behave differently. Sorbent media can become saturated, and odors or chemical smells may return even when particle filtration remains effective.Regular replacement helps keep performance closer to the level the purifier was designed to deliver—especially during high-load periods such as wildfire smoke or heavy seasonal pollen. Factors that affect filter lifespan Several conditions can shorten filter life: Outdoor events: wildfire smoke, high PM2.5 days, dust storms. Indoor sources: cooking particles, candles/incense, smoking, fireplaces, hobby/DIY dust. Occupants and surfaces: pets, carpeting, high foot traffic (more resuspension). Runtime and fan speed: longer hours and higher speeds load filters faster. higher humidity can affect some gas media performance and contribute to odor issues. Signs it’s time to replace a filter Replacement indicators vary by model, but common signs include: Reduced airflow at the same fan setting Higher noise than usual at the same speed Odors returning (often a gas/odor filter saturation issue) Filter-life indicator/app prompt (when available) Particle readings that don’t drop during operation (if an indoor air quality monitor is used to track pollutants) How to extend filter life (without reducing protection) Filter life can sometimes be extended by reducing the amount of pollution reaching the filter: Source control: limiting particle-generating activities can reduce loading (e.g., candles, incense, smoky cooking). Strategic ventilation: when outdoor air is clean, ventilation can reduce indoor pollutant buildup; during smoke or high PM2.5, keeping windows closed can reduce filter load. Placement and airflow: keeping intakes and exhausts unobstructed helps prevent unnecessary strain and potential performance loss. Frequently Asked Questions How do I know when to replace my IQAir filter? IQAir’s smart air purifiers (Atem X, HealthPro Plus XE) notify you via the app or control panel. For other models, check the user manual or inspect the filter for visible dirt buildup or reduced airflow. Can I wash or reuse HyperHEPA filters? No. HyperHEPA filter media is not washable, and attempts to clean it can damage the fibers. However, IQAir’s Atem X air purifier includes a washable Impaktor pre-filter stage for coarse particles; the HyperHEPA filters themselves still require replacement on schedule. What happens if I don’t replace the filter on time? A loaded particle filter can reduce airflow and clean-air delivery. In some cases, it can also increase noise and cause the purifier to work harder to move air. Saturated gas/odor filters may stop reducing odors effectively. Are third-party filters as effective as IQAir’s? Third-party and aftermarket filters can vary widely in fit and performance, and may be substantially less effective than genuine IQAir filters. Lower-efficiency media and reduced filter material can shorten filter life, reduce particle removal, and potentially affect airflow, energy use, and system wear over time. Conclusion For IQAir air purifiers, filter replacement intervals vary by model and filter stage. Some systems use annual replacement (for example, certain combined particle/gas filters), while others use multi-stage designs where the main particle filter may last several years under typical use assumptions. Regular filter replacement helps maintain stable air cleaning performance over time, especially during smoke season, high pollen periods, or in homes with pets. Following model-specific intervals and watching for airflow or odor changes keeps filtration closer to intended performance.","

Air purifier filters should be replaced on a schedule to maintain airflow and cleaning performance, but there isn’t one universal timeline. Replacement frequency depends on filter type (particle vs gas/odor), how many hours the purifier runs, and how much pollution the filter is asked to capture.

As a general rule, particle filters are replaced less often than gas/odor filters, and all filters load faster during smoke events, heavy dust periods, or in homes with strong indoor sources (cooking, candles, pets).

Filter replacement is often treated like a calendar task, but filters don’t “expire.” They load—sometimes slowly, sometimes suddenly—depending on what’s in the air and operating conditions.

Typical filter replacement timelines (rule of thumb)

Different filter stages wear out in different ways:

\nParticle filters (HEPA/high-efficiency): often replaced every 6–12 months in typical residential use; sooner during wildfire smoke, heavy dust, or pet-heavy conditions.
\nGas & odor filters (activated carbon/sorbent media): often replaced every 3–12 months, depending on odor load and media amount; odor “breakthrough” is a common signal.
\nPre-filters: often cleaned or replaced every 3–18 months, depending on design and exposure.

Model-specific guidance matters most because manufacturers size filters and airflow targets differently.

IQAir filter replacement guidelines by model

Replacement intervals vary by model and indoor conditions. The timelines below reflect typical use; higher pollution, smoke exposure, or continuous high-speed operation can shorten intervals.

Replacement estimates assume typical household use; longer daily runtime and higher fan speeds generally shorten intervals, while moderate runtime can extend them.

\nAtem X: HyperHEPA filter set typically lasts 12–36 months, depending on pollution and runtime. Atem X includes washable Impaktor pre-filters and filter-life monitoring to support replacement timing.
\nHealthPro Plus XE: The HyperHEPA filter typically lasts 36–48 months, depending on air quality and usage. The HealthPro Series also includes a PreMax pre-filter (every 12–18 months) and a V5-Cell gas & odor filter (every 15-21 months).
\nAtem Desk: The HyperHEPA filter lasts up to a year with regular use.
\nAtem Car: The HyperHEPA Plus filter is designed for annual replacement, ensuring long-term protection against pollutants in vehicle environments.

Note: IQAir smart air purifiers include filter-life tracking and provide replacement prompts based on runtime and operating conditions.

Performance claims can be confusing because some metrics describe speed when new, while others better reflect capacity over time.

CCM vs. CADR and filter longevity

Filter replacement intervals vary across brands and models because long-term performance is not determined by airflow alone. Many products perform well when new, then lose effectiveness more quickly as filters load with particle pollution and gases.

Two commonly discussed performance metrics help explain the difference:

CADR (Clean Air Delivery Rate) describes how quickly a new air purifier can reduce particles under standardized test conditions. It can be useful for estimating initial cleaning speed, but it does not indicate how long that performance will hold once filters begin to load.

CCM (Cumulate Clean Mass) is designed to reflect long-term filtration capacity. It estimates how much particulate matter (and, separately, formaldehyde) a purifier can remove before its clean-air performance drops substantially. In practical terms, CCM helps distinguish between products that may lose efficiency quickly and those built for more stable performance over time.

CCM results are typically reported in tiers for:

Particulate matter (P levels)
Formaldehyde (F levels)

Higher tiers generally indicate stronger long-term capacity before performance degradation.

In short: CADR is useful for “how fast” a purifier can clean the air when new, while CCM is closer to “how much” pollution it can handle before performance drops. Both can help explain why some filters last longer than others under real-world conditions.

Why filter replacement matters

As particle filters load, airflow meets increasing resistance as air is pushed through progressively smaller open pathways in the filter media. That increased resistance can reduce the amount of clean air delivered at a given setting and may cause the air purifier to work harder to move air through the system.

When clean-air delivery drops, rooms can take longer to clear after cooking, smoke, or high-pollen days; this is often the first sign that performance is slipping.

Gas and odor filters behave differently. Sorbent media can become saturated, and odors or chemical smells may return even when particle filtration remains effective.
Regular replacement helps keep performance closer to the level the purifier was designed to deliver—especially during high-load periods such as wildfire smoke or heavy seasonal pollen.

Factors that affect filter lifespan

Several conditions can shorten filter life:

\nOutdoor events: wildfire smoke, high PM2.5 days, dust storms.
\nIndoor sources: cooking particles, candles/incense, smoking, fireplaces, hobby/DIY dust.
\nOccupants and surfaces: pets, carpeting, high foot traffic (more resuspension).
\nRuntime and fan speed: longer hours and higher speeds load filters faster.
higher humidity can affect some gas media performance and contribute to odor issues.

Signs it’s time to replace a filter

Replacement indicators vary by model, but common signs include:

\nReduced airflow at the same fan setting
\nHigher noise than usual at the same speed
\nOdors returning (often a gas/odor filter saturation issue)
\nFilter-life indicator/app prompt (when available)
\nParticle readings that don’t drop during operation (if an indoor air quality monitor is used to track pollutants)

How to extend filter life (without reducing protection)

Filter life can sometimes be extended by reducing the amount of pollution reaching the filter:

\nSource control: limiting particle-generating activities can reduce loading (e.g., candles, incense, smoky cooking).
\nStrategic ventilation: when outdoor air is clean, ventilation can reduce indoor pollutant buildup; during smoke or high PM2.5, keeping windows closed can reduce filter load.
\nPlacement and airflow: keeping intakes and exhausts unobstructed helps prevent unnecessary strain and potential performance loss.

Frequently Asked Questions

How do I know when to replace my IQAir filter?

IQAir’s smart air purifiers (Atem X, HealthPro Plus XE) notify you via the app or control panel. For other models, check the user manual or inspect the filter for visible dirt buildup or reduced airflow.

Can I wash or reuse HyperHEPA filters?

No. HyperHEPA filter media is not washable, and attempts to clean it can damage the fibers. However, IQAir’s Atem X air purifier includes a washable Impaktor pre-filter stage for coarse particles; the HyperHEPA filters themselves still require replacement on schedule.

What happens if I don’t replace the filter on time?

A loaded particle filter can reduce airflow and clean-air delivery. In some cases, it can also increase noise and cause the purifier to work harder to move air. Saturated gas/odor filters may stop reducing odors effectively.

Are third-party filters as effective as IQAir’s?

Third-party and aftermarket filters can vary widely in fit and performance, and may be substantially less effective than genuine IQAir filters. Lower-efficiency media and reduced filter material can shorten filter life, reduce particle removal, and potentially affect airflow, energy use, and system wear over time.

Conclusion

For IQAir air purifiers, filter replacement intervals vary by model and filter stage. Some systems use annual replacement (for example, certain combined particle/gas filters), while others use multi-stage designs where the main particle filter may last several years under typical use assumptions.

Regular filter replacement helps maintain stable air cleaning performance over time, especially during smoke season, high pollen periods, or in homes with pets. Following model-specific intervals and watching for airflow or odor changes keeps filtration closer to intended performance.

","how-often-should-you-change-an-air-purifier-filter","gid://shopify/Article/640412254286","https://shop.iqair.cn/en/blogs/news/how-often-should-you-change-an-air-purifier-filter","2026-03-10T16:11:03Z",[905,1165],"How often should you change an air purifier filter?",{"_10":1288,"_202":-5,"_205":1289,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/272244015182","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/B_53d48b63-22e0-4518-adb7-d64645078f2b.jpg?v=1773166579",{"_1142":1143,"_1144":1291,"_1133":1292,"_1149":1293,"_1151":1294,"_1153":1295,"_1155":1296,"_1001":1297,"_10":1298,"_1159":1299,"_1161":-5,"_1162":1300,"_634":1301,"_598":1302,"_1167":1303},{"_12":1146},{"_1001":1148},"Some air purifiers are more effective in capturing airborne viruses and bacteria – learn how and why.","

Some air purifiers are more effective in capturing airborne viruses and bacteria – learn how and why.

","Viruses and bacteria spread most easily through shared indoor air — especially in homes, classrooms, healthcare settings, and other enclosed spaces where people spend extended time together. During cold and flu season, outbreaks, or periods of heightened illness risk, reducing what circulates in indoor air becomes an important part of protecting health. Air purifiers are often used as an added layer of protection — but not all air purifiers are designed to address microscopic pathogens. Understanding how viruses and bacteria behave in the air, and how different filtration technologies perform, is essential to using air purification effectively. When designed correctly, air purifiers can meaningfully reduce airborne viruses and bacteria by physically removing them from circulation. The most effective models rely on mechanical filtration, which traps particles using dense fiber filters rather than chemical reactions or ozone-based processes. Among these technologies, HyperHEPA filtration offers the highest level of protection. It captures at least 99.5% of airborne particles down to 0.003 microns — small enough to include many viruses and bacteria — making it one of the most advanced tools available for reducing airborne pathogens in homes, healthcare settings, and other critical indoor environments. Why long-term filtration performance matters Capturing microscopic pathogens isn’t just about how well a filter performs on day one—it’s about whether it continues to perform after weeks, months, and years of real-world use. Many air purifiers lose efficiency quickly as filters load with particles, reducing their ability to remove ultrafine contaminants over time. To address this, long-term filtration performance is evaluated using Cumulate Clean Mass (CCM) testing. Unlike speed-based metrics such as CADR, CCM measures how much particulate matter and gas pollution an air purifier can remove before its efficiency drops by 50 percent—a critical indicator of sustained protection. HyperHEPA filtration has been independently tested using CCM standards to demonstrate exceptional long-term stability. In standardized smoke-chamber testing, systems equipped with HyperHEPA filters maintained high removal efficiency even after processing the equivalent of thousands of cigarettes’ worth of fine particle pollution, far exceeding the highest performance classifications used in international testing protocols. This level of durability matters in real indoor environments, where exposure to airborne viruses, bacteria, and ultrafine particles is continuous rather than episodic. A filtration system that retains its efficiency over time helps ensure that airborne pathogens are consistently removed—not just immediately after a filter change, but throughout its usable lifespan. Why viruses and bacteria are a unique indoor air challenge Viruses and bacteria spread through the air as ultrafine particles, often released by coughing, sneezing, or even normal breathing. Many pathogens, such as influenza, SARS-CoV-2 (the virus responsible for COVID-19), and bacteria like Staphylococcus aureus, are small enough to remain suspended in the air for hours. Their size—some as tiny as 0.02 to 0.3 microns—makes them difficult to capture with ordinary filters. Because many viruses and bacteria remain suspended in the air for extended periods, controlling what circulates indoors becomes especially important. In enclosed environments with limited ventilation, airborne pathogens can accumulate and increase exposure risk — even when people feel well or symptoms are mild. This is where mechanical air filtration plays a role: by continuously removing airborne particles from circulation, high-performance air purifiers can help lower overall pathogen concentration in indoor air. In practical terms, this means fewer infectious particles circulating in the air over time. In homes, that can reduce ongoing exposure when someone is sick. In classrooms, healthcare settings, or shared offices, continuous filtration helps limit how much virus or bacteria remains airborne between interactions — especially when combined with ventilation and hygiene. How mechanical filtration works against airborne viruses and bacteria HyperHEPA air filters use ultra-dense, non-woven glass microfiber to physically block and retain particles. Unlike standard HEPA, which is tested for particles as small as 0.3 microns, HyperHEPA is proven to remove particles down to 0.003 microns. This includes not only viruses and bacteria but also ultrafine particles that can carry these pathogens deeper into the lungs. Limitations and best practices for maximum protection Air purifiers reduce airborne pathogens — they do not replace ventilation, hygiene, or medical precautions. Air purifiers are most effective as part of a broader infection-control strategy, particularly in shared indoor spaces, homes with vulnerable individuals, and during periods of increased illness risk. While HyperHEPA filtration is highly effective at removing airborne viruses and bacteria, it’s not a standalone solution. Pathogens can also spread through surface contact or close-person proximity. Some viruses remain infectious on hard surfaces while others can stay infectious on fabrics (1). To maximize the protection offered by mechanical filtration air purifiers: Maintain good ventilation (when outdoor air is clean) to reduce exposure to airborne pollutants. Run the air purifiers continuously, especially in high-risk areas like bedrooms, nurseries, or shared spaces. Place the system where air circulates freely, but not directly in drafts or near open windows. Replace filters as recommended—HyperHEPA filters last up to 4 years with typical use, but heavy pollution or high pathogen loads may require more frequent changes. To help stay safe from infectious viruses and colds, it’s also important to follow additional health and safety guidelines: If possible, avoid close contact with individuals who are sick or have symptoms. Clean and disinfect surfaces. Wash your hands for at least 20 seconds using soap and water. Use an alcohol-based hand sanitizer with at least 60% alcohol can be used if soap and water aren't available. Cover your sneezes and coughs using a tissue or your elbow; wash your hands afterwards. Try not to touch your face. Avoid putting your hands near your eyes, nose and mouth to keep germs away from those places. Frequently Asked Questions Can air purifiers remove all viruses and bacteria?No. HyperHEPA filtration can remove at least 99.5% of airborne viruses and bacteria down to 0.003 microns. However, no filter can guarantee 100% removal, and pathogens on surfaces or transmitted through direct contact are not addressed by air purification alone. Air filtration is one part of a layered approach to infection control. Is it okay to sleep with an air purifier on all night?Yes. Air purifiers are designed for continuous operation and are most effective when run overnight, when indoor air circulation is limited. Many models include quiet or sleep modes that maintain filtration without disrupting rest. How can you tell if the air in your home may be making you sick?Poor indoor air quality is often suspected when symptoms such as headaches, fatigue, throat irritation, dizziness, or cold-like symptoms appear shortly after entering a space and improve when leaving. Other signs include musty odors, visible mold, excessive dust, high humidity, or frequent allergy or asthma flare-ups. An indoor air quality monitor can help identify elevated pollutant levels. What are the negative side effects of HEPA air purifiers?True HEPA and HyperHEPA filters themselves are safe and do not produce harmful byproducts. Potential issues usually stem from additional technologies, such as ionizers that generate ozone, which can irritate the lungs and worsen asthma. Poor maintenance can also reduce effectiveness, underscoring the importance of regular filter changes. Conclusion Air purifiers equipped with HyperHEPA filtration can meaningfully reduce airborne viruses and bacteria, improving indoor air quality in homes, healthcare settings, and shared spaces. Their effectiveness isn’t just measured when filters are new—standards such as Cumulate Clean Mass (CCM) demonstrate how well HyperHEPA systems continue to capture pollutants over time, even under sustained exposure. When used consistently and paired with good hygiene, ventilation, and surface cleaning, air purification adds an important layer of protection—especially for vulnerable populations. Investing in medical-grade air purification with proven, durable filtration performance is a proactive step toward healthier indoor air and safer spaces for families, patients, and communities during flu season, outbreaks, and beyond.","

Viruses and bacteria spread most easily through shared indoor air — especially in homes, classrooms, healthcare settings, and other enclosed spaces where people spend extended time together. During cold and flu season, outbreaks, or periods of heightened illness risk, reducing what circulates in indoor air becomes an important part of protecting health.

Air purifiers are often used as an added layer of protection — but not all air purifiers are designed to address microscopic pathogens. Understanding how viruses and bacteria behave in the air, and how different filtration technologies perform, is essential to using air purification effectively.

When designed correctly, air purifiers can meaningfully reduce airborne viruses and bacteria by physically removing them from circulation. The most effective models rely on mechanical filtration, which traps particles using dense fiber filters rather than chemical reactions or ozone-based processes.

Among these technologies, HyperHEPA filtration offers the highest level of protection. It captures at least 99.5% of airborne particles down to 0.003 microns — small enough to include many viruses and bacteria — making it one of the most advanced tools available for reducing airborne pathogens in homes, healthcare settings, and other critical indoor environments.

Why long-term filtration performance matters

Capturing microscopic pathogens isn’t just about how well a filter performs on day one—it’s about whether it continues to perform after weeks, months, and years of real-world use. Many air purifiers lose efficiency quickly as filters load with particles, reducing their ability to remove ultrafine contaminants over time.

To address this, long-term filtration performance is evaluated using Cumulate Clean Mass (CCM) testing. Unlike speed-based metrics such as CADR, CCM measures how much particulate matter and gas pollution an air purifier can remove before its efficiency drops by 50 percent—a critical indicator of sustained protection.

HyperHEPA filtration has been independently tested using CCM standards to demonstrate exceptional long-term stability. In standardized smoke-chamber testing, systems equipped with HyperHEPA filters maintained high removal efficiency even after processing the equivalent of thousands of cigarettes’ worth of fine particle pollution, far exceeding the highest performance classifications used in international testing protocols.

This level of durability matters in real indoor environments, where exposure to airborne viruses, bacteria, and ultrafine particles is continuous rather than episodic. A filtration system that retains its efficiency over time helps ensure that airborne pathogens are consistently removed—not just immediately after a filter change, but throughout its usable lifespan.

Why viruses and bacteria are a unique indoor air challenge

Viruses and bacteria spread through the air as ultrafine particles, often released by coughing, sneezing, or even normal breathing.

Many pathogens, such as influenza, SARS-CoV-2 (the virus responsible for COVID-19), and bacteria like Staphylococcus aureus, are small enough to remain suspended in the air for hours. Their size—some as tiny as 0.02 to 0.3 microns—makes them difficult to capture with ordinary filters.

Because many viruses and bacteria remain suspended in the air for extended periods, controlling what circulates indoors becomes especially important. In enclosed environments with limited ventilation, airborne pathogens can accumulate and increase exposure risk — even when people feel well or symptoms are mild.

This is where mechanical air filtration plays a role: by continuously removing airborne particles from circulation, high-performance air purifiers can help lower overall pathogen concentration in indoor air.

In practical terms, this means fewer infectious particles circulating in the air over time. In homes, that can reduce ongoing exposure when someone is sick. In classrooms, healthcare settings, or shared offices, continuous filtration helps limit how much virus or bacteria remains airborne between interactions — especially when combined with ventilation and hygiene.

How mechanical filtration works against airborne viruses and bacteria

HyperHEPA air filters use ultra-dense, non-woven glass microfiber to physically block and retain particles.

Unlike standard HEPA, which is tested for particles as small as 0.3 microns, HyperHEPA is proven to remove particles down to 0.003 microns. This includes not only viruses and bacteria but also ultrafine particles that can carry these pathogens deeper into the lungs.

Limitations and best practices for maximum protection

Air purifiers reduce airborne pathogens — they do not replace ventilation, hygiene, or medical precautions. Air purifiers are most effective as part of a broader infection-control strategy, particularly in shared indoor spaces, homes with vulnerable individuals, and during periods of increased illness risk.

While HyperHEPA filtration is highly effective at removing airborne viruses and bacteria, it’s not a standalone solution. Pathogens can also spread through surface contact or close-person proximity. Some viruses remain infectious on hard surfaces while others can stay infectious on fabrics (1).

To maximize the protection offered by mechanical filtration air purifiers:

Maintain good ventilation (when outdoor air is clean) to reduce exposure to airborne pollutants.
Run the air purifiers continuously, especially in high-risk areas like bedrooms, nurseries, or shared spaces.
Place the system where air circulates freely, but not directly in drafts or near open windows.
\nReplace filters as recommended—HyperHEPA filters last up to 4 years with typical use, but heavy pollution or high pathogen loads may require more frequent changes.

To help stay safe from infectious viruses and colds, it’s also important to follow additional health and safety guidelines:

If possible, avoid close contact with individuals who are sick or have symptoms.
Clean and disinfect surfaces.
Wash your hands for at least 20 seconds using soap and water. Use an alcohol-based hand sanitizer with at least 60% alcohol can be used if soap and water aren't available.
Cover your sneezes and coughs using a tissue or your elbow; wash your hands afterwards.
\n
Try not to touch your face. Avoid putting your hands near your eyes, nose and mouth to keep germs away from those places.
\n

Frequently Asked Questions

Can air purifiers remove all viruses and bacteria?
No. HyperHEPA filtration can remove at least 99.5% of airborne viruses and bacteria down to 0.003 microns. However, no filter can guarantee 100% removal, and pathogens on surfaces or transmitted through direct contact are not addressed by air purification alone. Air filtration is one part of a layered approach to infection control.

Is it okay to sleep with an air purifier on all night?
Yes. Air purifiers are designed for continuous operation and are most effective when run overnight, when indoor air circulation is limited. Many models include quiet or sleep modes that maintain filtration without disrupting rest.

How can you tell if the air in your home may be making you sick?
Poor indoor air quality is often suspected when symptoms such as headaches, fatigue, throat irritation, dizziness, or cold-like symptoms appear shortly after entering a space and improve when leaving. Other signs include musty odors, visible mold, excessive dust, high humidity, or frequent allergy or asthma flare-ups. An indoor air quality monitor can help identify elevated pollutant levels.

What are the negative side effects of HEPA air purifiers?
True HEPA and HyperHEPA filters themselves are safe and do not produce harmful byproducts. Potential issues usually stem from additional technologies, such as ionizers that generate ozone, which can irritate the lungs and worsen asthma. Poor maintenance can also reduce effectiveness, underscoring the importance of regular filter changes.

Conclusion

Air purifiers equipped with HyperHEPA filtration can meaningfully reduce airborne viruses and bacteria, improving indoor air quality in homes, healthcare settings, and shared spaces. Their effectiveness isn’t just measured when filters are new—standards such as Cumulate Clean Mass (CCM) demonstrate how well HyperHEPA systems continue to capture pollutants over time, even under sustained exposure.

When used consistently and paired with good hygiene, ventilation, and surface cleaning, air purification adds an important layer of protection—especially for vulnerable populations. Investing in medical-grade air purification with proven, durable filtration performance is a proactive step toward healthier indoor air and safer spaces for families, patients, and communities during flu season, outbreaks, and beyond.

","do-air-purifiers-remove-viruses-and-bacteria-from-the-air","gid://shopify/Article/639582568526","https://shop.iqair.cn/en/blogs/news/do-air-purifiers-remove-viruses-and-bacteria-from-the-air","2026-02-24T19:26:53Z",[905,1165],"Do air purifiers remove viruses and bacteria from the air?",{"_10":1304,"_202":-5,"_205":1305,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/271820062798","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/B_85475134-d203-47a0-ad07-1c64102e04c4.jpg?v=1771963001",{"_1142":1143,"_1144":1307,"_1133":1308,"_1149":1309,"_1151":1310,"_1153":1311,"_1155":1312,"_1001":1313,"_10":1314,"_1159":1315,"_1161":-5,"_1162":1316,"_634":1317,"_598":1318,"_1167":1319},{"_12":1146},{"_1001":1148},"New research highlights how air pollution can quietly disrupt sleep — and treatments that can help restore your sleep.","

New research highlights how air pollution can quietly disrupt sleep — and treatments that can help restore your sleep.

","We all know air pollution harms the heart, lungs, and brain — but new evidence shows it can also steal our sleep.A comprehensive study out of Johns Hopkins University School of Nursing analyzed data from more than 1.2 million adults across six countries. The results are striking: people exposed to higher levels of air pollution, including fine particulate matter (PM2.5), nitrogen dioxide (NO₂), and carbon dioxide (CO₂), consistently reported shorter or poorer-quality sleep (1).Sleep is foundational to immune function, cognitive performance, and emotional regulation — making air quality a powerful factor in how well we rest.What makes this connection especially important is that sleep isn’t just a nightly routine — it’s a biological reset that pollution can quietly disrupt without us noticing.From early childhood through older adulthood, disrupted sleep compounds health risks — making air quality a quiet but consistent influence on sleep health. The hidden link between air pollution and sleep Sleep is shaped by far more than light, noise, or bedtime habits. The air we breathe—hour after hour, night after night—plays a subtle but powerful role in how deeply we sleep, how often we wake, and how well the body recovers overnight. According to the study, even modest pollution increases were linked with restless nights, insomnia, and shorter sleep duration — more impactful effects than scientists expected. “Air quality – both outdoors and inside the home – is an underrecognized contributor to sleep problems,” said Dr. Junxin Li, lead researcher for the study. “Cleaner air not only safeguards lungs and hearts, it also helps people sleep, supporting cognition, mood, and overall resilience.” These findings point to a broader pattern: air pollution doesn’t just affect sleep in extreme conditions, but subtly influences sleep quality across populations, environments, and everyday exposure levels. Cleaner air…helps people sleep, supporting cognition, mood, and overall resilience.”—Dr. Junxin Li, Johns Hopkins University What the research show The review combined findings from 25 high-quality studies conducted since 2015, covering adults over 45 years old in China, India, the U.S., Germany, and other nations. It was found that cutting average PM2.5 concentrations in half—from the levels typically found on busy city streets down to the World Health Organization (WHO) guideline—could reduce the likelihood of poor sleep by about 10 percent among middle-aged and older adults. In other words, cleaner air could help millions of people gain roughly an extra hour of rest each night. That insight helps explain why sleep disruption shows up not only in polluted cities, but also in everyday indoor spaces where people spend much of their lives. Indoor air matters, too While outdoor air pollution often gets the most attention, indoor air quality plays a critical role in sleep health—especially because people spend nearly a third of their lives asleep indoors. For many adults, nighttime exposure inside the home may represent their longest and most consistent contact with air pollution. Dr. Li’s team found that indoor pollution can be just as harmful — especially for older adults, who often spend most of their time indoors. Only six high-quality studies examined indoor sources, but their conclusions were clear: households using solid fuels such as coal or wood for cooking or heating reported far worse sleep outcomes than those using clean energy. And homes that used ventilation fans or opened windows during cooking saw notable improvements in sleep quality — evidence that even small steps to improve indoor air can matter. Sleep quality isn’t shaped only by what happens during the day, but by the air we’re exposed to night after night—making it important to understand how air pollution disrupts sleep in the first place. How air pollution disrupts sleep quality Air pollution can interfere with sleep quality through inflammation, nervous-system stimulation, and reduced oxygen exchange during the night. Prolonged exposure to even low-level pollutants can interfere with the body’s natural recovery processes.Unlike daytime exposure — which is intermittent — sleep creates a long, uninterrupted window where the body is continuously affected by the air it breathes. That makes nighttime air quality especially influential, even when pollution levels are relatively low.Scientists are still uncovering the mechanisms linking pollution to sleep problems, but several pathways are already well-understood: Inflammation and oxidative stress: Fine particles penetrate deep into the lungs and bloodstream, triggering systemic inflammation that can disturb normal sleep cycles. Nervous-system stimulation: Nitrogen dioxide and other gases can activate stress responses that increase heart rate and restlessness. Reduced oxygen exchange: Elevated CO₂ levels in bedrooms can lower oxygen availability, fragmenting deep sleep and REM phases. Noise and thermal effects: Polluted urban environments often coincide with traffic noise and higher nighttime temperatures — both known sleep disruptors. The outcome? More tossing, turning, and waking — and fewer restorative hours of rest. How clean air supports deeper, more restorative sleep When the air you breathe is free of pollutants, your body can maintain balanced oxygen and carbon-dioxide levels. Your heart rate stays steady, airways remain open, and inflammation decreases. That supports slow-wave (deep) sleep, the stage critical for physical repair and immune recovery. Nights spent in cleaner air environments showed measurable improvements in sleep efficiency and oxygen saturation. In studies of adults with asthma or cardiovascular disease, nights spent in cleaner air environments showed measurable improvements in sleep efficiency and oxygen saturation. Over time, better sleep quality is linked to lower cardiovascular risk, stronger immune response, improved memory, and better mental health — amplifying the health benefits of cleaner air beyond the bedroom. Indoor air quality while you sleep During sleep, we spend several uninterrupted hours breathing the air in a single enclosed space. Unlike daytime hours—when doors open, windows are used, and air is constantly exchanged—bedrooms often become more sealed at night, allowing pollutants to accumulate. Research shows that indoor air pollution can exceed outdoor levels by two to five times, especially overnight when ventilation is reduced. For people living near busy roads, dense urban corridors, or industrial areas, nighttime exposure may remain elevated—even when outdoor air quality appears good during the day. The encouraging news is that many of the most common bedroom pollutants are well understood—and highly controllable once identified. Understanding where these pollutants come from makes it easier to reduce exposure and create a sleep environment that supports the body’s natural overnight recovery. Common bedroom pollutants include: PM2.5 and ultrafine particles — from traffic exhaust, cooking, and candles.Impact: Can increase inflammation and interfere with deep, restorative sleep. Nitrogen dioxide (NO₂) — from gas stoves and heaters.Impact: May trigger airway irritation, wheezing, and nighttime restlessness. Volatile organic compounds (VOCs) — from cleaning products, paints, and new furniture.Impact: Can contribute to headaches, dizziness, and difficulty falling asleep. Carbon dioxide (CO₂) — from human exhalation in sealed rooms.Impact: Higher levels are associated with drowsiness and fragmented sleep. With the right combination of ventilation, monitoring, and filtration, these exposures can be significantly reduced—helping create a calmer, more supportive environment for sleep. Clean air solutions for better rest Improving sleep through cleaner air isn’t about perfection — it’s about reducing exposure where it matters most, during the hours your body is working hardest to recover. Sleep is a prolonged, uninterrupted activity, so small improvements in air quality can have an outsized impact overnight. Protecting sleep quality requires a layered approach to improving indoor air quality: Monitor indoor and outdoor air quality: Tracking conditions with an air quality monitor helps identify patterns—such as elevated PM2.5 or CO₂ levels at night—and informs when ventilation or filtration is most beneficial. Real-time data makes it easier to respond proactively rather than guessing. Downloading an air quality app can also provide outdoor air quality in the palm of your hand. Ventilate strategically: When outdoor air quality is good, opening windows or using extractor fans during cooking and cleaning helps prevent pollutants from building up indoors. Even brief ventilation before bedtime can lower overnight exposure. Use high-performance filtration where you sleep: Because the smallest particles are most likely to penetrate deep into the lungs and disrupt sleep, filtration that captures ultrafine particles is especially important in bedrooms. Air purifiers with HyperHEPA filtration are designed to remove particles far smaller than the limits of standard HEPA. Together, these steps help create an indoor environment that works with the body’s natural sleep processes, making cleaner air an enabler of deeper, more restorative rest. Studies suggest that improvements in bedroom air quality can influence sleep quality within days or weeks, not just over months or years. Conclusion Sleep is one of the body’s most powerful recovery tools — and the air you breathe plays a meaningful role in how well it works. By reducing exposure to particulate pollution indoors and out, you can support healthier sleep, protect your lungs, heart, and brain, and give your body the restorative rest it needs—especially over the long term.","

We all know air pollution harms the heart, lungs, and brain — but new evidence shows it can also steal our sleep.

A comprehensive study out of Johns Hopkins University School of Nursing analyzed data from more than 1.2 million adults across six countries. The results are striking: people exposed to higher levels of air pollution, including fine particulate matter (PM2.5), nitrogen dioxide (NO₂), and carbon dioxide (CO₂), consistently reported shorter or poorer-quality sleep (1).

Sleep is foundational to immune function, cognitive performance, and emotional regulation — making air quality a powerful factor in how well we rest.

What makes this connection especially important is that sleep isn’t just a nightly routine — it’s a biological reset that pollution can quietly disrupt without us noticing.

From early childhood through older adulthood, disrupted sleep compounds health risks — making air quality a quiet but consistent influence on sleep health.

The hidden link between air pollution and sleep

Sleep is shaped by far more than light, noise, or bedtime habits. The air we breathe—hour after hour, night after night—plays a subtle but powerful role in how deeply we sleep, how often we wake, and how well the body recovers overnight.

According to the study, even modest pollution increases were linked with restless nights, insomnia, and shorter sleep duration — more impactful effects than scientists expected.

“Air quality – both outdoors and inside the home – is an underrecognized contributor to sleep problems,” said Dr. Junxin Li, lead researcher for the study. “Cleaner air not only safeguards lungs and hearts, it also helps people sleep, supporting cognition, mood, and overall resilience.”

These findings point to a broader pattern: air pollution doesn’t just affect sleep in extreme conditions, but subtly influences sleep quality across populations, environments, and everyday exposure levels.

Cleaner air…helps people sleep, supporting cognition, mood, and overall resilience.”—Dr. Junxin Li, Johns Hopkins University

What the research show

The review combined findings from 25 high-quality studies conducted since 2015, covering adults over 45 years old in China, India, the U.S., Germany, and other nations. It was found that cutting average PM2.5 concentrations in half—from the levels typically found on busy city streets down to the World Health Organization (WHO) guideline—could reduce the likelihood of poor sleep by about 10 percent among middle-aged and older adults.

In other words, cleaner air could help millions of people gain roughly an extra hour of rest each night. That insight helps explain why sleep disruption shows up not only in polluted cities, but also in everyday indoor spaces where people spend much of their lives.

Indoor air matters, too

While outdoor air pollution often gets the most attention, indoor air quality plays a critical role in sleep health—especially because people spend nearly a third of their lives asleep indoors. For many adults, nighttime exposure inside the home may represent their longest and most consistent contact with air pollution.

Dr. Li’s team found that indoor pollution can be just as harmful — especially for older adults, who often spend most of their time indoors.

Only six high-quality studies examined indoor sources, but their conclusions were clear: households using solid fuels such as coal or wood for cooking or heating reported far worse sleep outcomes than those using clean energy. And homes that used ventilation fans or opened windows during cooking saw notable improvements in sleep quality — evidence that even small steps to improve indoor air can matter. Sleep quality isn’t shaped only by what happens during the day, but by the air we’re exposed to night after night—making it important to understand how air pollution disrupts sleep in the first place.

How air pollution disrupts sleep quality

Air pollution can interfere with sleep quality through inflammation, nervous-system stimulation, and reduced oxygen exchange during the night. Prolonged exposure to even low-level pollutants can interfere with the body’s natural recovery processes.
Unlike daytime exposure — which is intermittent — sleep creates a long, uninterrupted window where the body is continuously affected by the air it breathes. That makes nighttime air quality especially influential, even when pollution levels are relatively low.
Scientists are still uncovering the mechanisms linking pollution to sleep problems, but several pathways are already well-understood:

\nInflammation and oxidative stress: Fine particles penetrate deep into the lungs and bloodstream, triggering systemic inflammation that can disturb normal sleep cycles.
\nNervous-system stimulation: Nitrogen dioxide and other gases can activate stress responses that increase heart rate and restlessness.
\nReduced oxygen exchange: Elevated CO₂ levels in bedrooms can lower oxygen availability, fragmenting deep sleep and REM phases.
\nNoise and thermal effects: Polluted urban environments often coincide with traffic noise and higher nighttime temperatures — both known sleep disruptors.

The outcome? More tossing, turning, and waking — and fewer restorative hours of rest.

How clean air supports deeper, more restorative sleep

When the air you breathe is free of pollutants, your body can maintain balanced oxygen and carbon-dioxide levels. Your heart rate stays steady, airways remain open, and inflammation decreases. That supports slow-wave (deep) sleep, the stage critical for physical repair and immune recovery.

Nights spent in cleaner air environments showed measurable improvements in sleep efficiency and oxygen saturation.

In studies of adults with asthma or cardiovascular disease, nights spent in cleaner air environments showed measurable improvements in sleep efficiency and oxygen saturation.

Over time, better sleep quality is linked to lower cardiovascular risk, stronger immune response, improved memory, and better mental health — amplifying the health benefits of cleaner air beyond the bedroom.

Indoor air quality while you sleep

During sleep, we spend several uninterrupted hours breathing the air in a single enclosed space. Unlike daytime hours—when doors open, windows are used, and air is constantly exchanged—bedrooms often become more sealed at night, allowing pollutants to accumulate.

Research shows that indoor air pollution can exceed outdoor levels by two to five times, especially overnight when ventilation is reduced. For people living near busy roads, dense urban corridors, or industrial areas, nighttime exposure may remain elevated—even when outdoor air quality appears good during the day.

The encouraging news is that many of the most common bedroom pollutants are well understood—and highly controllable once identified. Understanding where these pollutants come from makes it easier to reduce exposure and create a sleep environment that supports the body’s natural overnight recovery.

Common bedroom pollutants include:

\nPM2.5 and ultrafine particles — from traffic exhaust, cooking, and candles.
Impact: Can increase inflammation and interfere with deep, restorative sleep.
\nNitrogen dioxide (NO₂) — from gas stoves and heaters.
Impact: May trigger airway irritation, wheezing, and nighttime restlessness.
\nVolatile organic compounds (VOCs) — from cleaning products, paints, and new furniture.
Impact: Can contribute to headaches, dizziness, and difficulty falling asleep.
\nCarbon dioxide (CO₂) — from human exhalation in sealed rooms.
Impact: Higher levels are associated with drowsiness and fragmented sleep.

With the right combination of ventilation, monitoring, and filtration, these exposures can be significantly reduced—helping create a calmer, more supportive environment for sleep.

Clean air solutions for better rest

Improving sleep through cleaner air isn’t about perfection — it’s about reducing exposure where it matters most, during the hours your body is working hardest to recover. Sleep is a prolonged, uninterrupted activity, so small improvements in air quality can have an outsized impact overnight.

Protecting sleep quality requires a layered approach to improving indoor air quality:

\nMonitor indoor and outdoor air quality: Tracking conditions with an air quality monitor helps identify patterns—such as elevated PM2.5 or CO₂ levels at night—and informs when ventilation or filtration is most beneficial. Real-time data makes it easier to respond proactively rather than guessing. Downloading an air quality app can also provide outdoor air quality in the palm of your hand.
\nVentilate strategically: When outdoor air quality is good, opening windows or using extractor fans during cooking and cleaning helps prevent pollutants from building up indoors. Even brief ventilation before bedtime can lower overnight exposure.
\nUse high-performance filtration where you sleep: Because the smallest particles are most likely to penetrate deep into the lungs and disrupt sleep, filtration that captures ultrafine particles is especially important in bedrooms. Air purifiers with HyperHEPA filtration are designed to remove particles far smaller than the limits of standard HEPA.

Together, these steps help create an indoor environment that works with the body’s natural sleep processes, making cleaner air an enabler of deeper, more restorative rest. Studies suggest that improvements in bedroom air quality can influence sleep quality within days or weeks, not just over months or years.

Conclusion

Sleep is one of the body’s most powerful recovery tools — and the air you breathe plays a meaningful role in how well it works.

By reducing exposure to particulate pollution indoors and out, you can support healthier sleep, protect your lungs, heart, and brain, and give your body the restorative rest it needs—especially over the long term.

","how-air-pollution-affects-sleep-quality","gid://shopify/Article/639854575694","https://shop.iqair.cn/en/blogs/news/how-air-pollution-affects-sleep-quality","2026-02-23T17:34:11Z",[1204,1165,709],"How air pollution affects sleep quality",{"_10":1320,"_202":-5,"_205":1321,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/271806201934","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/B_e7714080-7e8e-4b7b-8189-f2a618863740.jpg?v=1771868059",{"_1142":1143,"_1144":1323,"_1133":1324,"_1149":1325,"_1151":1326,"_1153":1327,"_1155":1328,"_1001":1329,"_10":1330,"_1159":1331,"_1161":-5,"_1162":1332,"_634":1333,"_598":1334,"_1167":1335},{"_12":1146},{"_1001":1148},"The 2024 World Air Quality Report analyzes PM2.5 pollution from over 40,000 air quality stations across 138 countries. Discover global air quality trends and how you can make a difference.","

The 2024 World Air Quality Report analyzes PM2.5 pollution from over 40,000 air quality stations across 138 countries. Discover global air quality trends and how you can make a difference.

","STEINACH, Switzerland (March 11, 2025) – IQAir today announced the release of its 7th annual World Air Quality Report, highlighting alarming trends of the world’s most polluted countries, territories, and regions in 2024. For this year’s report, data from more than 40,000 air quality monitoring stations across 8,954 locations in 138 countries, territories, and regions were analyzed by IQAir’s air quality scientists. Key findings from the 2024 World Air Quality Report: Only 17% of global cities meet WHO air pollution guideline. Seven countries met the WHO annual average PM2.5 guideline of 5 µg/m3: Australia, Bahamas, Barbados, Estonia, Grenada, Iceland, and New Zealand. The five most polluted countries in 2024 were: Chad (91.8 µg/m3): More than 18 times higher than the WHO PM2.5 annual guideline. Bangladesh (78.0 µg/m3): More than 15 times higher than the WHO PM2.5 annual guideline. Pakistan (73.7 µg/m3): More than 14 times higher than the WHO PM2.5 annual guideline. Democratic Republic of the Congo (58.2 µg/m3): More than 11 times higher than the WHO PM2.5 annual guideline. India (50.6 µg/m3): More than 10 times higher than the WHO PM2.5 annual guideline. A total of 126 (91.3%) out of 138 countries and regions exceeded the WHO annual PM2.5 guideline value of 5 µg/m3. Byrnihat, India was the most polluted metropolitan area of 2024, with an annual average PM2.5 concentration of 128.2 µg/m3. The region of Central & South Asia was home to the top seven most polluted cities in the world. India was home to six of the nine most polluted global cities. The most polluted major U.S. city was Los Angeles, California. Ontario, California was the most polluted city in the United States. Seattle, Washington was the cleanest major city in the U.S. Mayaguez, Puerto Rico was the cleanest metropolitan area of 2024, with an annual average PM2.5 concentration of 1.1 µg/m3. PM2.5 concentrations decreased in every country in Southeast Asia, though transboundary haze and lingering El Niño conditions remain major factors. In Africa, the scarcity of real-time, publicly accessible air quality monitoring data is so severe that there is only one monitoring station for every 3.7 million people. Wildfires in the Amazon rainforest impacted vast areas of Latin America in 2024, with PM2.5 levels in some cities across Brazil’s Rondônia and Acre states quadrupling in September. Oceania is the world’s cleanest region, with 57% of regional cities meeting the WHO PM2.5 annual guideline value of 5 µg/m3. There has been notable progress in expanding air quality monitoring across various countries, regions, and territories over the past 12 months. However, considerable gaps still exist in government-operated regulatory systems in many parts of the world. Low-cost air quality monitors—used by citizen scientists, researchers, community advocates, and local organizations—have proven to be effective tools to address these data gaps. These monitors have proven to enhance the availability of crucial data on air pollution levels worldwide. \"Air pollution remains a critical threat to both human health and environmental stability, yet vast populations remain unaware of their exposure levels,\" says Frank Hammes, Global CEO of IQAir. \"Air quality data saves lives. It creates much needed awareness, informs policy decisions, guiding public health interventions, and empowers communities to take action to reduce air pollution and protect future generations.\" IQAir’s new Schools4Earth initiative acknowledges the outsized impact that schools have to expand the global air quality monitoring network and seeks to provide over 1 million schools with air quality monitors. IQAir estimates that currently only 21% of the world population has access to hyper-local, real-time air quality information. With a vision of every school worldwide monitoring air quality, IQAir estimates that over 94% of the global population would have access to real-time pollution data—filling critical information gaps and improving public health responses. “Schools are at the center of communities, making them ideal locations for air quality monitoring. By outfitting schools worldwide with low-cost air quality monitors, over seven billion people would have access to hyper-local, real-time air quality data, creating a worldwide movement for cleaner air,” says Hammes. The World Air Quality Report underscores how this urgent, data-driven approach is crucial in driving policy changes and collective efforts to reduce pollution for future generations. “The World Air Quality Report, which compiles measurements of air pollution from around the globe, should be a rallying call for urgent and concerted international efforts to cut pollutant emissions,” states Aidan Farrow, Senior Air Quality Scientist with Greenpeace International. “By highlighting the disproportionate risk posed to young people by air pollution, the report reminds us that a failure to act today will be felt by future generations, while frequent references to human activities like coal burning and deforestation are a reminder that air quality, climate change, and the world that will be inherited by our children are inextricably linked.” To download the 2024 World Air Quality Report, CLICK HERE. To learn more about Schools4Earth, CLICK HERE. Text Media contact: Armen Araradianpr.na@iqair.com+1 (562) 252-8224","

STEINACH, Switzerland (March 11, 2025) – IQAir today announced the release of its 7th annual World Air Quality Report, highlighting alarming trends of the world’s most polluted countries, territories, and regions in 2024.

For this year’s report, data from more than 40,000 air quality monitoring stations across 8,954 locations in 138 countries, territories, and regions were analyzed by IQAir’s air quality scientists.

Key findings from the 2024 World Air Quality Report:

Only 17% of global cities meet WHO air pollution guideline.
Seven countries met the WHO annual average PM2.5 guideline of 5 µg/m3: Australia, Bahamas, Barbados, Estonia, Grenada, Iceland, and New Zealand.
The five most polluted countries in 2024 were:\n
- Chad (91.8 µg/m3): More than 18 times higher than the WHO PM2.5 annual guideline.
- Bangladesh (78.0 µg/m3): More than 15 times higher than the WHO PM2.5 annual guideline.
- Pakistan (73.7 µg/m3): More than 14 times higher than the WHO PM2.5 annual guideline.
- Democratic Republic of the Congo (58.2 µg/m3): More than 11 times higher than the WHO PM2.5 annual guideline.
- India (50.6 µg/m3): More than 10 times higher than the WHO PM2.5 annual guideline.
\n
A total of 126 (91.3%) out of 138 countries and regions exceeded the WHO annual PM2.5 guideline value of 5 µg/m3.
Byrnihat, India was the most polluted metropolitan area of 2024, with an annual average PM2.5 concentration of 128.2 µg/m3. The region of Central & South Asia was home to the top seven most polluted cities in the world. India was home to six of the nine most polluted global cities.
The most polluted major U.S. city was Los Angeles, California. Ontario, California was the most polluted city in the United States. Seattle, Washington was the cleanest major city in the U.S.
Mayaguez, Puerto Rico was the cleanest metropolitan area of 2024, with an annual average PM2.5 concentration of 1.1 µg/m3.
PM2.5 concentrations decreased in every country in Southeast Asia, though transboundary haze and lingering El Niño conditions remain major factors.
In Africa, the scarcity of real-time, publicly accessible air quality monitoring data is so severe that there is only one monitoring station for every 3.7 million people.
Wildfires in the Amazon rainforest impacted vast areas of Latin America in 2024, with PM2.5 levels in some cities across Brazil’s Rondônia and Acre states quadrupling in September.
Oceania is the world’s cleanest region, with 57% of regional cities meeting the WHO PM2.5 annual guideline value of 5 µg/m3.

There has been notable progress in expanding air quality monitoring across various countries, regions, and territories over the past 12 months. However, considerable gaps still exist in government-operated regulatory systems in many parts of the world. Low-cost air quality monitors—used by citizen scientists, researchers, community advocates, and local organizations—have proven to be effective tools to address these data gaps. These monitors have proven to enhance the availability of crucial data on air pollution levels worldwide.

\"Air pollution remains a critical threat to both human health and environmental stability, yet vast populations remain unaware of their exposure levels,\" says Frank Hammes, Global CEO of IQAir. \"Air quality data saves lives. It creates much needed awareness, informs policy decisions, guiding public health interventions, and empowers communities to take action to reduce air pollution and protect future generations.\"

IQAir’s new Schools4Earth initiative acknowledges the outsized impact that schools have to expand the global air quality monitoring network and seeks to provide over 1 million schools with air quality monitors. IQAir estimates that currently only 21% of the world population has access to hyper-local, real-time air quality information. With a vision of every school worldwide monitoring air quality, IQAir estimates that over 94% of the global population would have access to real-time pollution data—filling critical information gaps and improving public health responses.

“Schools are at the center of communities, making them ideal locations for air quality monitoring. By outfitting schools worldwide with low-cost air quality monitors, over seven billion people would have access to hyper-local, real-time air quality data, creating a worldwide movement for cleaner air,” says Hammes.

The World Air Quality Report underscores how this urgent, data-driven approach is crucial in driving policy changes and collective efforts to reduce pollution for future generations.

“The World Air Quality Report, which compiles measurements of air pollution from around the globe, should be a rallying call for urgent and concerted international efforts to cut pollutant emissions,” states Aidan Farrow, Senior Air Quality Scientist with Greenpeace International. “By highlighting the disproportionate risk posed to young people by air pollution, the report reminds us that a failure to act today will be felt by future generations, while frequent references to human activities like coal burning and deforestation are a reminder that air quality, climate change, and the world that will be inherited by our children are inextricably linked.”

To download the 2024 World Air Quality Report, CLICK HERE.

To learn more about Schools4Earth, CLICK HERE.

Text Media contact:

Armen Araradian
pr.na@iqair.com
+1 (562) 252-8224

","waqr-2024-pr","gid://shopify/Article/635540045902","https://shop.iqair.cn/en/blogs/news/waqr-2024-pr","2025-03-11T05:10:09Z",[1204,699,1165,900],"2024 IQAir World Air Quality Report",{"_10":1336,"_202":1337,"_205":1338,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/271952052302","World Air Quality Report","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/WAQR-2024_Desk_v2_42c81117-524f-4079-bcfa-1baec63eb8d5.jpg?v=1772745596","pageInfo",{"_1341":45,"_1342":45,"_1343":1344,"_1345":1346},"hasPreviousPage","hasNextPage","endCursor","eyJsYXN0X2lkIjo2MzU1NDAwNDU5MDIsImxhc3RfdmFsdWUiOjE3NDE2Njk4MDkwMDAsIm9mZnNldCI6MTB9","startCursor","eyJsYXN0X2lkIjo2NDEwNDYyNDk1NTAsImxhc3RfdmFsdWUiOjE3NzY4Nzk0NjUwMDAsIm9mZnNldCI6MH0=","selectedTag",{"_598":1349,"_999":43,"_205":1003,"_1004":1350},"IQAir News - Featured articles",{"_1006":1007,"_1008":1351,"_12":1349,"_999":43,"_205":1003},"Blog","categorizedArticles",{"_1354":1355,"_1366":1367,"_1468":1469,"_1535":1536,"_1606":1607},"featured",[1356,1361],{"_1142":1143,"_1144":1357,"_1133":1358,"_1149":1150,"_1151":1152,"_1153":1154,"_1155":1156,"_1001":1157,"_10":1158,"_1159":1160,"_1161":-5,"_1162":1163,"_634":1359,"_598":1166,"_1167":1360},{"_12":1146},{"_1001":1148},[699,1165,704],{"_10":1169,"_202":-5,"_205":1170,"_207":1171,"_203":1172},{"_1142":1143,"_1144":1362,"_1133":1363,"_1149":1176,"_1151":1177,"_1153":1178,"_1155":1179,"_1001":1180,"_10":1181,"_1159":1182,"_1161":-5,"_1162":1183,"_634":1364,"_598":1185,"_1167":1365},{"_12":1146},{"_1001":1148},[905,1165],{"_10":1187,"_202":1188,"_205":1189,"_207":1190,"_203":1191},"latest",[1368,1384,1400,1418,1435,1451],{"_1142":1143,"_1144":1369,"_1133":1370,"_1149":1371,"_1151":1372,"_1153":1373,"_1155":1374,"_1001":1375,"_10":1376,"_1159":1377,"_1161":-5,"_1162":1378,"_634":1379,"_598":1380,"_1167":1381},{"_12":1146},{"_1001":1148},"Wildfires spread across Brantley County in Georgia, burning structures and causing road closures. Learn more about what is causing the Georgia wildfires.","

Wildfires spread across Brantley County in Georgia, burning structures and causing road closures. Learn more about what is causing the Georgia wildfires.

","What is the name and location of the wildfire? On April 26, 2026, the Brantley Highway 82 Fire is burning in southeastern region of Georgia, neighboring the northern Florida border. The fire is located just off U.S. Highway 82 near the Brantley County line, bordering Glynn County and spreading into Camden County (1)(2). Which cities or areas are affected by the wildfire? The Brantley Highway 82 wildfire has spread across multiple highways, neighborhoods, and communities, including (3)(4): Atkinson Waynesville Happy Hollow U.S. Highway 82 area, from Nahunta to Post Road Highway 110 West, near Camden County line Highway 259, near Camden County line What is the current containment status of the Brantley Highway 82 Fire? On April 26, 2026, the Brantley Highway 82 Fires has burned approximately 13,745 acres and is about 7% contained. Brantley County, Glynn County, and Effingham County Fire Rescue teams have been working together to contain the wildfire and stop the spread to neighboring communities. Glynn County issued a temporary outdoor burn ban, prohibiting outdoor fires ignited by residents such as fireworks and bonfire pits, to prevent additional wildfires (5)(6). Are there any evacuation orders or alerts in place? Mandatory evacuation orders for several neighborhoods and communities have been issued all throughout Brantley County, including Happy Hollow, Hawks Landing, and Drury Court. Those needing to evacuate are directed to use Highway 32 for safety. Various neighboring cities are on wildfire watch as winds continue to carry smoke throughout the state. On April 22, 2026, all Brantley County schools were closed due to the wildfire breaching containment. Shelters are open to the public through various churches in the Nahunta and Hortense region, providing food and water to locals in need. Residents in neighboring cities on wildfire watch alert are advised to stay indoors, keep windows closed, and monitor fire updates and alerts (7). How can I protect myself from wildfire smoke? Always plan ahead to protect yourself from wildfire smoke. Get a free air quality app for real-time air quality alerts and forecasts. Shut doors and windows and set the HVAC to recirculate mode. Run a high-performance air purifier to filter wildfire smoke. Contribute to your community’s outdoor air quality data. Stay indoors; if you do need to go outdoors, wear a KN95/FFP2 mask. On April 26, 2026, this fire is 7% contained.","

What is the name and location of the wildfire?

On April 26, 2026, the Brantley Highway 82 Fire is burning in southeastern region of Georgia, neighboring the northern Florida border.

The fire is located just off U.S. Highway 82 near the Brantley County line, bordering Glynn County and spreading into Camden County (1)(2).

Which cities or areas are affected by the wildfire?

The Brantley Highway 82 wildfire has spread across multiple highways, neighborhoods, and communities, including (3)(4):

Atkinson
Waynesville
Happy Hollow
U.S. Highway 82 area, from Nahunta to Post Road
Highway 110 West, near Camden County line
Highway 259, near Camden County line

What is the current containment status of the Brantley Highway 82 Fire?

On April 26, 2026, the Brantley Highway 82 Fires has burned approximately 13,745 acres and is about 7% contained.

Brantley County, Glynn County, and Effingham County Fire Rescue teams have been working together to contain the wildfire and stop the spread to neighboring communities. Glynn County issued a temporary outdoor burn ban, prohibiting outdoor fires ignited by residents such as fireworks and bonfire pits, to prevent additional wildfires (5)(6).

Are there any evacuation orders or alerts in place?

Mandatory evacuation orders for several neighborhoods and communities have been issued all throughout Brantley County, including Happy Hollow, Hawks Landing, and Drury Court. Those needing to evacuate are directed to use Highway 32 for safety. Various neighboring cities are on wildfire watch as winds continue to carry smoke throughout the state.

On April 22, 2026, all Brantley County schools were closed due to the wildfire breaching containment. Shelters are open to the public through various churches in the Nahunta and Hortense region, providing food and water to locals in need. Residents in neighboring cities on wildfire watch alert are advised to stay indoors, keep windows closed, and monitor fire updates and alerts (7).

How can I protect myself from wildfire smoke?

Always plan ahead to protect yourself from wildfire smoke.

\nGet a free air quality app for real-time air quality alerts and forecasts.
Shut doors and windows and set the HVAC to recirculate mode.
Run a high-performance air purifier to filter wildfire smoke.
Contribute to your community’s outdoor air quality data.
Stay indoors; if you do need to go outdoors, wear a KN95/FFP2 mask.\n

On April 26, 2026, this fire is 7% contained.

","wildfire-map-spotlight-brantley-highway-82-fire-georgia","gid://shopify/Article/641422590030","https://shop.iqair.cn/en/blogs/news/wildfire-map-spotlight-brantley-highway-82-fire-georgia","2026-04-26T11:06:15Z",[1204,694,719],"Wildfire Map Spotlight: Brantley Highway 82 Fire, Georgia",{"_10":1382,"_202":-5,"_205":1383,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/273053155406","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/Wildfire2Desktop_876a5930-0d23-40e5-ba7b-5738ecbd92fa.jpg?v=1777201577",{"_1142":1143,"_1144":1385,"_1133":1386,"_1149":1387,"_1151":1388,"_1153":1389,"_1155":1390,"_1001":1391,"_10":1392,"_1159":1393,"_1161":-5,"_1162":1394,"_634":1395,"_598":1396,"_1167":1397},{"_12":1146},{"_1001":1148},"Fast-spreading wildfires in northern Japan’s Iwate region have forced mass evacuations and strained firefighting efforts. Click here to learn more.","

Fast-spreading wildfires in northern Japan’s Iwate region have forced mass evacuations and strained firefighting efforts. Click here to learn more.

","What is the name and location of the wildfire? As of April 25, 2026, multiple wildfires are burning across Iwate Prefecture in northern Japan. The blazes are affecting forested and rural areas, where dry conditions and strong winds have accelerated fire spread. Firefighters are battling flames across several fronts, with aerial and ground operations deployed to contain the fires (1). Fire map of northern Japan as of April 25, 2026. Source: IQAir. Which cities or areas are affected by the Iwate Fires? The Iwate wildfires are affecting several areas in northern Japan, including: Ichinoseki Iwate Prefecture forest regions Oshu Rural communities across southern Iwate These areas have experienced wildfire threats, smoke impacts, and emergency response activity as fires continue to spread across forested landscapes (2). What is the current containment status of the Iwate Fires? As of April 25, 2026, the wildfires in Iwate Prefecture remain largely uncontained. Firefighters are struggling to control the blazes due to strong winds, dry vegetation, and challenging terrain. Hundreds of personnel, along with helicopters, have been deployed, but officials report that containment efforts remain ongoing as fire activity continues across multiple areas (3). Are there any evacuation orders or alerts in place? Authorities have issued evacuation orders affecting more than 3,000 residents across impacted areas in Iwate Prefecture. Evacuation shelters have been established, and residents have been urged to leave immediately due to the fast-moving fires. Emergency alerts remain in place as officials continue to monitor fire behavior and warn that conditions could worsen with shifting winds (4). How can I protect myself from wildfire smoke? Always plan ahead to protect yourself from wildfire smoke. Get a free air quality app for real-time air quality alerts and forecasts. Shut doors and windows and set the HVAC to recirculate mode. Run a high-performance air purifier to filter wildfire smoke. Contribute to your community’s outdoor air quality data. Stay indoors; if you do need to go outdoors, wear a KN95/FFP2 mask.","

What is the name and location of the wildfire?

As of April 25, 2026, multiple wildfires are burning across Iwate Prefecture in northern Japan. The blazes are affecting forested and rural areas, where dry conditions and strong winds have accelerated fire spread. Firefighters are battling flames across several fronts, with aerial and ground operations deployed to contain the fires (1).

$\"\"$ Fire map of northern Japan as of April 25, 2026. Source: IQAir.

Which cities or areas are affected by the Iwate Fires?

The Iwate wildfires are affecting several areas in northern Japan, including:

Ichinoseki
Iwate Prefecture forest regions
Oshu
Rural communities across southern Iwate

These areas have experienced wildfire threats, smoke impacts, and emergency response activity as fires continue to spread across forested landscapes (2).

What is the current containment status of the Iwate Fires?

As of April 25, 2026, the wildfires in Iwate Prefecture remain largely uncontained. Firefighters are struggling to control the blazes due to strong winds, dry vegetation, and challenging terrain.

Hundreds of personnel, along with helicopters, have been deployed, but officials report that containment efforts remain ongoing as fire activity continues across multiple areas (3).

Are there any evacuation orders or alerts in place?

Authorities have issued evacuation orders affecting more than 3,000 residents across impacted areas in Iwate Prefecture. Evacuation shelters have been established, and residents have been urged to leave immediately due to the fast-moving fires.

Emergency alerts remain in place as officials continue to monitor fire behavior and warn that conditions could worsen with shifting winds (4).

How can I protect myself from wildfire smoke?

Always plan ahead to protect yourself from wildfire smoke.

\nGet a free air quality app for real-time air quality alerts and forecasts.
Shut doors and windows and set the HVAC to recirculate mode.
Run a high-performance air purifier to filter wildfire smoke.
Contribute to your community’s outdoor air quality data.
Stay indoors; if you do need to go outdoors, wear a KN95/FFP2 mask.\n

","wildfire-map-spotlight-iwate-fires-japan","gid://shopify/Article/641438744654","https://shop.iqair.cn/en/blogs/news/wildfire-map-spotlight-iwate-fires-japan","2026-04-25T10:48:18Z",[1204,694,719],"Wildfire Map Spotlight: Iwate Fires, Japan",{"_10":1398,"_202":-5,"_205":1399,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/273044766798","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/Wildfire7Desktop_6f799f9b-35bd-4ae5-b7a9-05a7ef5ec74b.jpg?v=1777114104",{"_1142":1143,"_1144":1401,"_1133":1402,"_1149":1403,"_1151":1404,"_1153":1405,"_1155":1406,"_1001":1407,"_10":1408,"_1159":1409,"_1161":-5,"_1162":1410,"_634":1411,"_598":1413,"_1167":1414},{"_12":1146},{"_1001":1148},"Find out more about the Pressey Fire burning near Oconto in central Nebraska, including affected areas, containment efforts, and emergency updates.","

Find out more about the Pressey Fire burning near Oconto in central Nebraska, including affected areas, containment efforts, and emergency updates.

","What is the name and location of the wildfire? As of April 25, 2026, the Pressey Fire is active in Pressey Park near Oconto in Custer County, Nebraska. The fire is located north of Oconto along Highway 21 in central Nebraska and has impacted areas surrounding Pressey Park. Emergency crews remain focused on protecting nearby communities, property, and critical infrastructure as firefighting operations continue (1). Which cities or areas are affected by the wildfire? The cities and areas affected by the Pressey Fire include: Custer County Oconto Pressey Park Surrounding areas along Highway 21 What is the current containment status of the Pressey Fire? As of April 25, 2026, the Pressey Fire remains at 45% containment and has burned 9,141 acres. More than 130 personnel are actively working around the clock to contain the fire, with additional resources continuing to arrive. Support efforts include two Nebraska Army National Guard UH-60 Black Hawk helicopters conducting bucket drops, along with a National Guard hand crew assisting firefighters on the ground (2). Officials also reported that one home and several outbuildings have been destroyed, while the cause of the wildfire remains under investigation (3). Are there any evacuation orders or alerts in place? No evacuation orders have been issued, but officials are strongly urging residents and visitors to avoid the Pressey Park area near Oconto to allow emergency responders to safely continue firefighting operations. How can I protect myself from wildfire smoke? Always plan ahead to protect yourself from wildfire smoke. Get a free air quality app for real-time air quality alerts and forecasts. Shut doors and windows and set the HVAC to recirculate mode. Run a high-performance air purifier to filter wildfire smoke. Contribute to your community’s outdoor air quality data. Stay indoors; if you do need to go outdoors, wear a KN95/FFP2 mask. As of April 25, 2026, this fire is 45% contained.","

What is the name and location of the wildfire?

As of April 25, 2026, the Pressey Fire is active in Pressey Park near Oconto in Custer County, Nebraska. The fire is located north of Oconto along Highway 21 in central Nebraska and has impacted areas surrounding Pressey Park.

Emergency crews remain focused on protecting nearby communities, property, and critical infrastructure as firefighting operations continue (1).

Which cities or areas are affected by the wildfire?

The cities and areas affected by the Pressey Fire include:

Custer County
Oconto
Pressey Park
Surrounding areas along Highway 21

What is the current containment status of the Pressey Fire?

As of April 25, 2026, the Pressey Fire remains at 45% containment and has burned 9,141 acres.

More than 130 personnel are actively working around the clock to contain the fire, with additional resources continuing to arrive. Support efforts include two Nebraska Army National Guard UH-60 Black Hawk helicopters conducting bucket drops, along with a National Guard hand crew assisting firefighters on the ground (2).

Officials also reported that one home and several outbuildings have been destroyed, while the cause of the wildfire remains under investigation (3).

Are there any evacuation orders or alerts in place?

No evacuation orders have been issued, but officials are strongly urging residents and visitors to avoid the Pressey Park area near Oconto to allow emergency responders to safely continue firefighting operations.

How can I protect myself from wildfire smoke?

Always plan ahead to protect yourself from wildfire smoke.

\nGet a free air quality app for real-time air quality alerts and forecasts.
Shut doors and windows and set the HVAC to recirculate mode.
Run a high-performance air purifier to filter wildfire smoke.
Contribute to your community’s outdoor air quality data.
Stay indoors; if you do need to go outdoors, wear a KN95/FFP2 mask.\n

As of April 25, 2026, this fire is 45% contained.

","wildfire-map-spotlight-pressey-fire-central-nebraska","gid://shopify/Article/641434878030","https://shop.iqair.cn/en/blogs/news/wildfire-map-spotlight-pressey-fire-central-nebraska","2026-04-25T09:50:15Z",[1204,694,1412,719],"Wildfire","Wildfire Map Spotlight: Pressey Fire, Central Nebraska",{"_10":1415,"_202":1416,"_205":1417,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/273044111438","massive wildfire spreading through a forest","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/Wildfire1Desktop_2e369cf5-e84d-4b6b-ae92-d99bb23e6858.jpg?v=1777110621",{"_1142":1143,"_1144":1419,"_1133":1420,"_1149":1421,"_1151":1422,"_1153":1423,"_1155":1424,"_1001":1425,"_10":1426,"_1159":1427,"_1161":-5,"_1162":1428,"_634":1429,"_598":1430,"_1167":1431},{"_12":1146},{"_1001":1148},"Find out more about the Pineland Road Fire and its impact on communities in southern Georgia.","

Find out more about the Pineland Road Fire and its impact on communities in southern Georgia.

","What is the name and location of the wildfire? As of April 25, 2026, the Pineland Road Fire is burning in southern Georgia across Clinch and Echols counties. The fire is located approximately 5 miles west of Colon Road and Mud Camp Pineland Road, near Highway 441 and close to the Suwannee River at the boundary between the two counties (1). Which cities or areas are affected by the wildfire? The cities and areas affected by the Pineland Road Fire include: Colon Echols County Fargo Highway area Needmore Fruitland Regions near Headlight Road Regions near Tiger Lake Road Regions near Will Rewis Road and Barnes Road What is the current containment status of the Pineland Road Fire? As of April 25, 2026, the Pineland Road Fire has burned approximately 31,000 acres and is 10% contained. Firefighting crews continue suppression efforts under challenging conditions, including severe drought, low humidity, strong winds, and difficult swampy terrain. Full containment is not expected until late May (2). Are there any evacuation orders or alerts in place? A mandatory evacuation order is in effect for all of Fruitland in Echols County. Residents are urged to leave immediately, taking essentials, pets, and medications, and to follow official routes and instructions. Evacuation alerts remain in place for residents near Highway 441 between Headlight Road and Tiger Lake Road, as well as areas east of Will Rewis Road and Barnes Road. Officials advise residents not to return to evacuated areas until authorities declare it safe. Evacuation shelters have been opened, including Venture of Faith Camp in Lake Park and Camp Rock in Valdosta (3). How can I protect myself from wildfire smoke? Always plan ahead to protect yourself from wildfire smoke. Get a free air quality app for real-time air quality alerts and forecasts. Shut doors and windows and set the HVAC to recirculate mode. Run a high-performance air purifier to filter wildfire smoke. Contribute to your community’s outdoor air quality data. Stay indoors; if you do need to go outdoors, wear a KN95/FFP2 mask. As of April 25, 2026, this fire is 10% contained.","

What is the name and location of the wildfire?

As of April 25, 2026, the Pineland Road Fire is burning in southern Georgia across Clinch and Echols counties.

The fire is located approximately 5 miles west of Colon Road and Mud Camp Pineland Road, near Highway 441 and close to the Suwannee River at the boundary between the two counties (1).

Which cities or areas are affected by the wildfire?

The cities and areas affected by the Pineland Road Fire include:

Colon
Echols County
Fargo Highway area
Needmore
Fruitland
Regions near Headlight Road
Regions near Tiger Lake Road
Regions near Will Rewis Road and Barnes Road

What is the current containment status of the Pineland Road Fire?

As of April 25, 2026, the Pineland Road Fire has burned approximately 31,000 acres and is 10% contained.

Firefighting crews continue suppression efforts under challenging conditions, including severe drought, low humidity, strong winds, and difficult swampy terrain. Full containment is not expected until late May (2).

Are there any evacuation orders or alerts in place?

A mandatory evacuation order is in effect for all of Fruitland in Echols County. Residents are urged to leave immediately, taking essentials, pets, and medications, and to follow official routes and instructions.

Evacuation alerts remain in place for residents near Highway 441 between Headlight Road and Tiger Lake Road, as well as areas east of Will Rewis Road and Barnes Road. Officials advise residents not to return to evacuated areas until authorities declare it safe.

Evacuation shelters have been opened, including Venture of Faith Camp in Lake Park and Camp Rock in Valdosta (3).

How can I protect myself from wildfire smoke?

Always plan ahead to protect yourself from wildfire smoke.

\nGet a free air quality app for real-time air quality alerts and forecasts.
Shut doors and windows and set the HVAC to recirculate mode.
Run a high-performance air purifier to filter wildfire smoke.
Contribute to your community’s outdoor air quality data.
Stay indoors; if you do need to go outdoors, wear a KN95/FFP2 mask.\n

As of April 25, 2026, this fire is 10% contained.

","wildfire-map-spotlight-pineland-road-fire-georgia","gid://shopify/Article/641403387982","https://shop.iqair.cn/en/blogs/news/wildfire-map-spotlight-pineland-road-fire-georgia","2026-04-25T09:46:03Z",[1204,694,1412,719],"Wildfire Map Spotlight: Pineland Road Fire, Georgia",{"_10":1432,"_202":1433,"_205":1434,"_207":1171,"_203":1172},"gid://shopify/ArticleImage/273044013134","Wildfire engulfs a dense forest","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/Wildfire9Desktop_04f6ecdd-3689-4216-8d6f-68161d36178f.jpg?v=1777110368",{"_1142":1143,"_1144":1436,"_1133":1437,"_1149":1438,"_1151":1439,"_1153":1440,"_1155":1441,"_1001":1442,"_10":1443,"_1159":1444,"_1161":-5,"_1162":1445,"_634":1446,"_598":1447,"_1167":1448},{"_12":1146},{"_1001":1148},"Southeast Asia grapples with unhealthy air pollution, affecting major cities and public health. Learn more about the impacted regions, underlying causes, and expected improvements.","

Southeast Asia grapples with unhealthy air pollution, affecting major cities and public health. Learn more about the impacted regions, underlying causes, and expected improvements.

","Is the air quality good in Southeast Asia? On April 24, 2026, air quality across Southeast Asia remains poor, with some of the major cities experiencing air quality in the \"unhealthy\" range and high PM2.5 concentrations, posing serious health risks to residents, especially children and the elderly. By 5:00 PM (local time, UTC+7), several urban centers have recorded AQI readings between 100 and 200, prompting health warnings. Residents are advised to limit outdoor activity, keep windows closed, wear masks when outside, and use air purifiers indoors. While conditions remain variable, Southeast Asia’s average PM2.5 levels in 2025 continued to exceed WHO guidelines across the region. Indonesia recorded around 30 µg/m³, about six times the guideline, while Vietnam reached 29.7 µg/m³, or 5.9 times higher. Myanmar and Laos measured 4.7 and 4.5 times the limit, respectively, while Thailand and Cambodia were each about 3.6 times above, underscoring persistent regional air quality challenges. Air quality map of Southeast Asia and neighboring countries as of 5:00 PM (local time) on April 24, 2026. Source: IQAir. When will the air quality improve in Southeast Asia? As of April 24, 2026, several major cities across Southeast Asia are reporting poor air quality. Some of the affected cities include: Chiang Mai, Thailand Chiang Rai, Thailand Lampang, Thailand Luang Prabang, Laos Phitsanulok, Thailand Air quality conditions can change rapidly throughout the day. For a complete, real-time overview of pollution levels nationwide, see Southeast Asia air quality map. Chiang Mai ranked among the most polluted major cities globally, as of 5:00 PM (local time) on April 24, 2026. Source: IQAir. When will air quality improve in Southeast Asia? Conditions usually begin to improve in late April as weather patterns shift and the rainy season approaches, with rainfall and increased atmospheric mixing helping to disperse smoke particles and reduce PM2.5 concentrations. By Songkran in mid-April, air quality in northern Thailand typically clears, though the pattern of \"fine one day, hazardous the next\" persists until monsoon rains provide more sustained relief. For maritime Southeast Asia, the dry season runs through October, meaning improvement there depends on the onset of the northeast monsoon. Lasting regional progress requires coordinated cross-border emission controls and a transition away from open burning practices (1). What is causing poor air quality in Southeast Asia? Southeast Asia experiences two distinct burning seasons each year, with mainland countries including Thailand, Myanmar, Laos, Cambodia, and Vietnam affected from November through May, while more equatorial maritime nations including Indonesia and Malaysia face peak fire activity from June through October (2).; Biomass burning accounts for approximately 48% of annual average PM2.5 concentrations across mainland Southeast Asia, with forest fires, shrubland fires, and crop residue burning peaking in March when monthly average PM2.5 reaches 45 µg/m³. Indonesia is the major contributor to transboundary haze across the region, as combustion of biomass and organic peat soil generates large volumes of carbonaceous fine particles that are carried by prevailing winds into Malaysia, Thailand, Singapore, Vietnam, and neighboring countries. Urban sources including vehicle emissions, coal-fired power generation, and industrial activity add to the pollution burden year-round (3). How can I protect myself from poor air quality? Get a free air quality app for real-time air quality alerts and forecasts. Shut doors and windows and set the HVAC to recirculate mode. Contribute to your community’s outdoor air quality data. Stay indoors when air quality is poor; if you do need to go outdoors, wear a KN95/FFP2 mask. Run a high-performance air purifier to filter particles, gases, and other pollutants.","

Is the air quality good in Southeast Asia?

On April 24, 2026, air quality across Southeast Asia remains poor, with some of the major cities experiencing air quality in the \"unhealthy\" range and high PM2.5 concentrations, posing serious health risks to residents, especially children and the elderly.

By 5:00 PM (local time, UTC+7), several urban centers have recorded AQI readings between 100 and 200, prompting health warnings. Residents are advised to limit outdoor activity, keep windows closed, wear masks when outside, and use air purifiers indoors.

While conditions remain variable, Southeast Asia’s average PM2.5 levels in 2025 continued to exceed WHO guidelines across the region. Indonesia recorded around 30 µg/m³, about six times the guideline, while Vietnam reached 29.7 µg/m³, or 5.9 times higher. Myanmar and Laos measured 4.7 and 4.5 times the limit, respectively, while Thailand and Cambodia were each about 3.6 times above, underscoring persistent regional air quality challenges.

$\"\"$ Air quality map of Southeast Asia and neighboring countries as of 5:00 PM (local time) on April 24, 2026. Source: IQAir.

When will the air quality improve in Southeast Asia?

As of April 24, 2026, several major cities across Southeast Asia are reporting poor air quality. Some of the affected cities include:

\nChiang Mai, Thailand
\nChiang Rai, Thailand
\nLampang, Thailand
\nLuang Prabang, Laos
\nPhitsanulok, Thailand

Air quality conditions can change rapidly throughout the day. For a complete, real-time overview of pollution levels nationwide, see Southeast Asia air quality map.

$\"\"$ Chiang Mai ranked among the most polluted major cities globally, as of 5:00 PM (local time) on April 24, 2026. Source: IQAir.

When will air quality improve in Southeast Asia?

Conditions usually begin to improve in late April as weather patterns shift and the rainy season approaches, with rainfall and increased atmospheric mixing helping to disperse smoke particles and reduce PM2.5 concentrations.

By Songkran in mid-April, air quality in northern Thailand typically clears, though the pattern of \"fine one day, hazardous the next\" persists until monsoon rains provide more sustained relief.

For maritime Southeast Asia, the dry season runs through October, meaning improvement there depends on the onset of the northeast monsoon. Lasting regional progress requires coordinated cross-border emission controls and a transition away from open burning practices (1).

What is causing poor air quality in Southeast Asia?

Southeast Asia experiences two distinct burning seasons each year, with mainland countries including Thailand, Myanmar, Laos, Cambodia, and Vietnam affected from November through May, while more equatorial maritime nations including Indonesia and Malaysia face peak fire activity from June through October (2).;

Biomass burning accounts for approximately 48% of annual average PM2.5 concentrations across mainland Southeast Asia, with forest fires, shrubland fires, and crop residue burning peaking in March when monthly average PM2.5 reaches 45 µg/m³.

Indonesia is the major contributor to transboundary haze across the region, as combustion of biomass and organic peat soil generates large volumes of carbonaceous fine particles that are carried by prevailing winds into Malaysia, Thailand, Singapore, Vietnam, and neighboring countries. Urban sources including vehicle emissions, coal-fired power generation, and industrial activity add to the pollution burden year-round (3).

How can I protect myself from poor air quality?

\nGet a free air quality app for real-time air quality alerts and forecasts.
Shut doors and windows and set the HVAC to recirculate mode.
Contribute to your community’s outdoor air quality data.
Stay indoors when air quality is poor; if you do need to go outdoors, wear a KN95/FFP2 mask.\n
Run a high-performance air purifier to filter particles, gases, and other pollutants.

","southeast-asia-air-quality-alert","gid://shopify/Article/641385955406","https://shop.iqair.cn/en/blogs/news/southeast-asia-air-quality-alert","2026-04-24T10:11:19Z",[1204,694],"Southeast Asia Air Quality Alert",{"_10":1449,"_202":-5,"_205":1450,"_207":1171,"_203":1172},"gid://shopify/ArticleImage/273035493454","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/SoutheastAsia_Fire_Desk_d37bcf82-23d6-4d47-ba61-f2ee6992c6e9.jpg?v=1777025484",{"_1142":1143,"_1144":1452,"_1133":1453,"_1149":1454,"_1151":1455,"_1153":1456,"_1155":1457,"_1001":1458,"_10":1459,"_1159":1460,"_1161":-5,"_1162":1461,"_634":1462,"_598":1463,"_1167":1464},{"_12":1146},{"_1001":1148},"Find out more about the extreme heatwave affecting multiple regions across India as temperatures continue to rise across the country.","

Find out more about the extreme heatwave affecting multiple regions across India as temperatures continue to rise across the country.

","Why is there a heatwave in India? As of April 23, 2026, India is experiencing widespread extreme heat across northern, central, and eastern regions, with Bihar, West Bengal, Odisha, Uttar Pradesh, Madhya Pradesh, Rajasthan, Chhattisgarh, Punjab, Haryana, and Delhi reporting dangerously high temperatures (1). According to recent reports, 19 of the world’s 20 hottest cities are currently located in India. Among the hardest-hit locations are Bhagalpur in Bihar, Talcher in Odisha, Asansol in West Bengal, and Medinipur in West Bengal. The current heatwave is being fueled by a combination of weather and climate factors. Strong pre-monsoon solar heating is rapidly warming land surfaces. Cloudless skies are also allowing prolonged exposure to direct sunlight. Reduced winter snowfall across the Himalayas and parts of Eurasia has also contributed to higher temperatures by reducing natural cooling effects. At the same time, hot and dry northwesterly winds are suppressing rainfall across large parts of the country. Shifting Pacific Ocean patterns and ENSO-neutral conditions are further weakening cooling weather systems, allowing extreme temperatures to persist for longer periods. Areas near the Himalayan region are also experiencing abnormal warming due to reduced snow cover, while eastern plains near Nepal’s Lumbini region are facing similar extreme heat conditions (2). How long will the heatwave last? The current heat event began intensifying after April 20, 2026, as temperatures rose sharply across multiple regions. According to the India Meteorological Department (IMD), heatwave conditions are expected to continue through at least April 26 to April 27 in several states. Some areas may not experience meaningful relief until later in the month as pre-monsoon weather activity increases. Heatwave conditions are expected to persist across: Delhi, Punjab, and Haryana through April 24–25 West Uttar Pradesh through April 23–25 East Uttar Pradesh through April 22–26 Rajasthan through April 24–26 Madhya Pradesh through April 23–26 Vidarbha and Chhattisgarh through April 24–27 Bihar, Jharkhand, and West Bengal through April 22–23 Southern coastal regions, including Odisha, Andhra Pradesh, Tamil Nadu, Kerala, and coastal Karnataka, are also expected to experience prolonged hot and humid weather conditions (3). Are there any alerts in place? The India Meteorological Department has issued multiple heat-related alerts across affected regions as temperatures continue to rise. Yellow alerts remain in place in several states where heat exposure poses moderate health risks, particularly for children, older adults, and individuals with existing medical conditions. Orange alerts have also been issued in areas facing a higher risk of heat-related illness due to prolonged exposure. Delhi remains under a yellow alert through April 24, while severe heat advisories continue across Rajasthan, Madhya Pradesh, Uttar Pradesh, Punjab, Haryana, and parts of eastern India. At this time, no evacuation orders or emergency shelters have been reported in connection with the heatwave. Health officials are advising residents to take precautions, including staying hydrated, limiting outdoor activity during peak afternoon hours, wearing lightweight clothing, and recognizing signs of heat exhaustion or heatstroke. Officials have also warned about unusually warm nighttime temperatures in Delhi, Haryana, Odisha, and Konkan. These warmer nights may increase health risks by limiting the body’s ability to recover from prolonged daytime heat exposure (4).","

Why is there a heatwave in India?

As of April 23, 2026, India is experiencing widespread extreme heat across northern, central, and eastern regions, with Bihar, West Bengal, Odisha, Uttar Pradesh, Madhya Pradesh, Rajasthan, Chhattisgarh, Punjab, Haryana, and Delhi reporting dangerously high temperatures (1).

According to recent reports, 19 of the world’s 20 hottest cities are currently located in India. Among the hardest-hit locations are Bhagalpur in Bihar, Talcher in Odisha, Asansol in West Bengal, and Medinipur in West Bengal.

The current heatwave is being fueled by a combination of weather and climate factors. Strong pre-monsoon solar heating is rapidly warming land surfaces. Cloudless skies are also allowing prolonged exposure to direct sunlight.

Reduced winter snowfall across the Himalayas and parts of Eurasia has also contributed to higher temperatures by reducing natural cooling effects. At the same time, hot and dry northwesterly winds are suppressing rainfall across large parts of the country.

Shifting Pacific Ocean patterns and ENSO-neutral conditions are further weakening cooling weather systems, allowing extreme temperatures to persist for longer periods.

Areas near the Himalayan region are also experiencing abnormal warming due to reduced snow cover, while eastern plains near Nepal’s Lumbini region are facing similar extreme heat conditions (2).

How long will the heatwave last?

The current heat event began intensifying after April 20, 2026, as temperatures rose sharply across multiple regions.

According to the India Meteorological Department (IMD), heatwave conditions are expected to continue through at least April 26 to April 27 in several states. Some areas may not experience meaningful relief until later in the month as pre-monsoon weather activity increases.

Heatwave conditions are expected to persist across:

\nDelhi, Punjab, and Haryana through April 24–25
West Uttar Pradesh through April 23–25
East Uttar Pradesh through April 22–26
\nRajasthan through April 24–26
\nMadhya Pradesh through April 23–26
Vidarbha and Chhattisgarh through April 24–27
\nBihar, Jharkhand, and West Bengal through April 22–23

Southern coastal regions, including Odisha, Andhra Pradesh, Tamil Nadu, Kerala, and coastal Karnataka, are also expected to experience prolonged hot and humid weather conditions (3).

Are there any alerts in place?

The India Meteorological Department has issued multiple heat-related alerts across affected regions as temperatures continue to rise.

Yellow alerts remain in place in several states where heat exposure poses moderate health risks, particularly for children, older adults, and individuals with existing medical conditions.

Orange alerts have also been issued in areas facing a higher risk of heat-related illness due to prolonged exposure.

Delhi remains under a yellow alert through April 24, while severe heat advisories continue across Rajasthan, Madhya Pradesh, Uttar Pradesh, Punjab, Haryana, and parts of eastern India.

At this time, no evacuation orders or emergency shelters have been reported in connection with the heatwave.

Health officials are advising residents to take precautions, including staying hydrated, limiting outdoor activity during peak afternoon hours, wearing lightweight clothing, and recognizing signs of heat exhaustion or heatstroke.

Officials have also warned about unusually warm nighttime temperatures in Delhi, Haryana, Odisha, and Konkan. These warmer nights may increase health risks by limiting the body’s ability to recover from prolonged daytime heat exposure (4).

","heatwave-map-spotlight-northern-central-and-eastern-india","gid://shopify/Article/641426391118","https://shop.iqair.cn/en/blogs/news/heatwave-map-spotlight-northern-central-and-eastern-india","2026-04-23T09:16:54Z",[1204,694],"Heatwave Map Spotlight: Northern, Central, and Eastern India",{"_10":1465,"_202":1466,"_205":1467,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/273011146830","A man wipes sweat from his face under the scorching sun.","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/Heatwave2Desktop_478bd724-81d3-48ec-9432-e2ab4c213dd0.jpg?v=1776936784","popular",[1470,1487,1503,1519],{"_1142":1143,"_1144":1471,"_1133":1472,"_1149":1473,"_1151":1473,"_1153":1474,"_1155":1475,"_1001":1476,"_10":1477,"_1159":1478,"_1161":-5,"_1162":1479,"_634":1480,"_598":1482,"_1167":1483},{"_12":1146},{"_1001":1148},"Learn why wildfire smoke poses a health risk to people living far downwind and what you can do to help protect yourself.","When considering the dangers of wildfires, thoughts of fleeing your home while a raging wildfire rapidly approaches can easily consume your imagination. However, the number one cause of death from fires is smoke inhalation. The primary cause of death from wildfires is smoke inhalation. 50 to 80 percent of fire deaths are from smoke inhalation. Inhaling smoke damages your body in one or both of the following ways: by robbing it of oxygen through particulate matter irritation Smoke inhalation is particularly dangerous because you may not show symptoms until 24 to 48 hours after exposure. 50–80 percent of fire deaths are from smoke inhalation.1 Read on to learn how to help protect the health of yourself and your loved ones, and learn some wildfire smoke safety tips to rest assured that you’ve taken the necessary wildfire safety precautions to reduce the consequences of toxic wildfire smoke. What’s in wildfire smoke? Wildfire smoke is a mixture of thousands of individual compounds, including harmful particles and gases that pose a severe health risk to anyone (including pets) nearby and downwind from a fire. Wildfire smoke often contains: water vapor particulate matter trace minerals carbon dioxide carbon monoxide nitrogen oxides hydrocarbons and nitrogen oxide compounds that contribute to elevated ozone (O3) levels volatile organic compounds (VOCs), including acrolein and formaldehyde (potent respiratory irritants) Wildfire smoke often contains fine (PM2.5) and ultrafine particles that can be absorbed directly into your blood stream and reach any organ or area of your body. Pictured: The typical contents of wildfire smoke, including ultrafine particles (≤ 0.3 microns), PM2.5 (2.5-10 microns), acrolein, PM10 (> 10 microns), formaldehyde, carbon dioxide (CO2), carbon monoxide (CO), nitrogen oxides, and hydrocarbons. Source: IQAir Wildfire smoke composition depends upon multiple factors, including: the types of wood and vegetation burning the moisture content the fire temperature wind conditions other weather-related influences The primary pollutant threatening the health of those nearby and downwind of a wildfire is particulate matter. Wildfire smoke often contains fine (or PM2.5) and ultrafine particles. These tiny airborne particles are the most dangerous to your health. Fine particles (smaller than 2.5 microns) penetrate deeply into your lungs. The most dangerous are ultrafine particles (smaller than 0.1 microns), which represent 90% of all airborne particles. These particles are tiny and can be absorbed directly into your bloodstream. Once in your blood, they can reach any organ or area of your body. Clean the air with high-performance air filtration Learn more about our wildfire smoke air purifiers Click here Wildfire smoke and at-risk populations Most healthy adults will recover from smoke exposure. However, certain individuals are more at risk for severe health consequences, including:2 Young children. Children whose lungs are still developing are considered more vulnerable, regardless of whether they have a pre-existing condition. Pregnant women. Wildfire smoke inhalation puts pregnant women and their unborn children at a higher risk than the general population. Older adults. This population is at-risk due to an increased rate of pre-existing heart and lung disease. Anyone with a respiratory disease. Individuals with emphysema, chronic bronchitis, COPD, asthma, or another respiratory disease are at-risk. Individuals with heart disease. Circulatory diseases include high blood pressure, vascular diseases, heart failure, and cerebrovascular conditions. These conditions make sufferers susceptible to heart attacks, transient chest pain, heart failure, stroke, and sudden death from cardiac arrhythmia. Young children, pregnant women, older adults, and people with respiratory and cardiovascular pre-existing conditions may find that they experience more severe symptoms and find it harder to breathe.3 The full impact of wildfire smoke is not yet fully understood. A 2017 review in Environmental Toxicology and Pharmacology found that there are still important study opportunities for exploring the long-term health implications of smoke exposure, smoke exposure recovery, and additional smoke inhalation health impacts for children.4 Exposure to smoke can be dangerous simply due to the microorganisms within the smoke. A 2020 study in Science magazine noted that microorganisms, such as bacteria and fungal spores, comprise some of the particulate matter found in smoke.5 The study theorizes that infectious disease may be spread as bacteria and fungi become part of smoke’s particulate composition. Microorganisms, such as bacteria and fungal spores, comprise some of the particulate matter found in smoke, and infectious disease may be spread as they become part of the smoke’s particulate composition. How wildfire smoke behaves Many factors affect wildfire smoke behavior, such as: weather geographical terrain the stage of the fire wind Use the live, interactive air quality map below to see how weather, wind, and location can impact the behavior of wildfire smoke near you. Windy conditions generally cause smoke to mix with larger volumes of air to lower smoke concentrations. However, strong winds also can spread fires more quickly, causing larger fires with greater impact. Regional weather can be the dominant determinant in how a fire behaves as well as how smoke affects surrounding areas. However, regional weather systems can spread fires quickly and result in larger fires with more smoke generated, creating the potential for even greater impacts. Strong regional weather systems can also dominate a fire’s behavior for days and be the determining factor of where and how smoke will affect an area. Smoke can travel for miles beyond its source. In 2020, smoke from wildfires in the Western United States drifted for nearly 5,000 miles, eventually being detected in Europe. Smoke can travel for miles beyond its source. In 2020, smoke from wildfires in the western United States drifted for nearly 5,000 miles, eventually being detected in Europe.6 Wildfire safety tips Wildfire smoke events can occur seemingly without warning. But there are steps you can take to prepare yourself using appropriate safety precautions for wildfires. Keep the air clean in your home. Keep windows and doors closed closed and seal off any openings to the outside, including vents, to help prevent outdoor smoke from getting in. When using an air conditioner, be sure to set it to re-circulate and close the fresh-air intake. Filter the air when ventilating the space. An air purifier for wildfire smoke, will help remove smoke particles of all sizes down to 0.003 microns from the indoor air and help control ozone levels. This is critical if you live in an urban area downwind (even remotely) from wildfires. Stay indoors as much as possible. This tactic is most useful in buildings that effectively stop outdoor air from getting inside. If you need to travel by car to leave or evacuate an area affected by wildfire smoke, use a car air purifier to help keep your vehicle interior air clean as you pass through smoky or polluted areas. You can also use a portable, personal air purifier to access clean air where other air filtration systems are not available. Wear a mask outdoors. Only use an air pollution mask with an N95, KN95, N100, or FFP2 rating to help. Avoid activities that further pollute the indoor air. Avoid burning candles, using the fireplace, or even vacuuming unless you own a high-performance HEPA vacuum cleaner. All of these activities can otherwise become additional sources of indoor air pollutants. Monitor your indoor air quality. Use an air quality monitor to track levels of indoor pollutants like PM2.5 and CO2 from smoke and other indoor pollution sources. Take action if indoor air pollutants rise to dangerous levels by running an air purifier, circulating fresh air through your HVAC system, or leaving your home temporarily if indoor air becomes unsafe to breathe or your home is threatened by wildfire. Use an air quality monitoring app to keep track of pollutants in your environment. The AirVisual app displays real-time hyperlocal data from over 80,000 sensors around the world. The app also tracks up to six key wildfire pollutants, such as PM2.5, CO2, and NO2, so that you have the best picture of your local air quality during a wildfire and can take action to help protect your health. Wildfires are increasing in frequency and intensity. Wildfire smoke can negatively affect your health, even if you’re far away from the actual fire. Learn to protect the health of yourself and your family, and rest assured that you’ve taken the necessary precautions. During a wildfire, it’s also important to monitor your local air quality to see how wildfire smoke will affect your outdoor air. The takeaway Wildfires are increasing in frequency and intensity. Wildfire smoke can negatively affect your health, even if you’re far away from the actual fire. And while wildfire smoke may be a warning sign of imminent fires, smoke also delivers its own set of risks for people living miles beyond the source. Though smoke pollutants carried on the wind may be invisible, their impacts are felt by those most at risk. Smoke pollutants pose health threats that range from irritation and cough to more serious respiratory and cardiac risks. By helping control smoke pollutants that threaten our indoor air quality through monitoring and air purification, it's possible to help manage wildfire smoke health risks.","

When considering the dangers of wildfires, thoughts of fleeing your home while a raging wildfire rapidly approaches can easily consume your imagination. However, the number one cause of death from fires is smoke inhalation.

The primary cause of death from wildfires is smoke inhalation. 50 to 80 percent of fire deaths are from smoke inhalation.

Inhaling smoke damages your body in one or both of the following ways:

by robbing it of oxygen
through particulate matter irritation

Smoke inhalation is particularly dangerous because you may not show symptoms until 24 to 48 hours after exposure. 50–80 percent of fire deaths are from smoke inhalation.¹

Read on to learn how to help protect the health of yourself and your loved ones, and learn some wildfire smoke safety tips to rest assured that you’ve taken the necessary wildfire safety precautions to reduce the consequences of toxic wildfire smoke.

What’s in wildfire smoke?

Wildfire smoke is a mixture of thousands of individual compounds, including harmful particles and gases that pose a severe health risk to anyone (including pets) nearby and downwind from a fire.

Wildfire smoke often contains:

\n
water vapor
\n
\n
particulate matter
\n
\n
trace minerals
\n
\n
carbon dioxide
\n
\n
carbon monoxide
\n
\n
nitrogen oxides
\n
\n
hydrocarbons and nitrogen oxide compounds that contribute to elevated ozone (O₃) levels
\n
\n
volatile organic compounds (VOCs), including acrolein and formaldehyde (potent respiratory irritants)
\n

Wildfire smoke often contains fine (PM2.5) and ultrafine particles that can be absorbed directly into your blood stream and reach any organ or area of your body.

$\"What's$

Pictured: The typical contents of wildfire smoke, including ultrafine particles (≤ 0.3 microns), PM2.5 (2.5-10 microns), acrolein, PM10 (> 10 microns), formaldehyde, carbon dioxide (CO₂), carbon monoxide (CO), nitrogen oxides, and hydrocarbons. Source: IQAir

Wildfire smoke composition depends upon multiple factors, including:

\n
the types of wood and vegetation burning
\n

\n
the moisture content
\n
\n
the fire temperature
\n
\n
wind conditions
\n
\n
other weather-related influences
\n

The primary pollutant threatening the health of those nearby and downwind of a wildfire is particulate matter. Wildfire smoke often contains fine (or PM2.5) and ultrafine particles. These tiny airborne particles are the most dangerous to your health.

Fine particles (smaller than 2.5 microns) penetrate deeply into your lungs.

The most dangerous are ultrafine particles (smaller than 0.1 microns), which represent 90% of all airborne particles. These particles are tiny and can be absorbed directly into your bloodstream. Once in your blood, they can reach any organ or area of your body.

\n \n

\n\n

Clean the air with high-performance air filtration
Learn more about our wildfire smoke air purifiers

\n\n

Click here

Wildfire smoke and at-risk populations

Most healthy adults will recover from smoke exposure. However, certain individuals are more at risk for severe health consequences, including:²

\n
Young children. Children whose lungs are still developing are considered more vulnerable, regardless of whether they have a pre-existing condition.
\n
\n
Pregnant women. Wildfire smoke inhalation puts pregnant women and their unborn children at a higher risk than the general population.
\n
\n
Older adults. This population is at-risk due to an increased rate of pre-existing heart and lung disease.
\n
\n
Anyone with a respiratory disease. Individuals with emphysema, chronic bronchitis, COPD, asthma, or another respiratory disease are at-risk.
\n
\n
Individuals with heart disease. Circulatory diseases include high blood pressure, vascular diseases, heart failure, and cerebrovascular conditions. These conditions make sufferers susceptible to heart attacks, transient chest pain, heart failure, stroke, and sudden death from cardiac arrhythmia.
\n

Young children, pregnant women, older adults, and people with respiratory and cardiovascular pre-existing conditions may find that they experience more severe symptoms and find it harder to breathe.³

The full impact of wildfire smoke is not yet fully understood. A 2017 review in Environmental Toxicology and Pharmacology found that there are still important study opportunities for exploring the long-term health implications of smoke exposure, smoke exposure recovery, and additional smoke inhalation health impacts for children.⁴

Exposure to smoke can be dangerous simply due to the microorganisms within the smoke. A 2020 study in Science magazine noted that microorganisms, such as bacteria and fungal spores, comprise some of the particulate matter found in smoke.⁵ The study theorizes that infectious disease may be spread as bacteria and fungi become part of smoke’s particulate composition.

 Microorganisms, such as bacteria and fungal spores, comprise some of the particulate matter found in smoke, and infectious disease may be spread as they become part of the smoke’s particulate composition.

How wildfire smoke behaves

Many factors affect wildfire smoke behavior, such as:

\n
weather
\n
\n
geographical terrain
\n
\n
the stage of the fire
\n
\n
wind
\n

Use the live, interactive air quality map below to see how weather, wind, and location can impact the behavior of wildfire smoke near you.

$\"placeholder$

Windy conditions generally cause smoke to mix with larger volumes of air to lower smoke concentrations. However, strong winds also can spread fires more quickly, causing larger fires with greater impact.

Regional weather can be the dominant determinant in how a fire behaves as well as how smoke affects surrounding areas. However, regional weather systems can spread fires quickly and result in larger fires with more smoke generated, creating the potential for even greater impacts.

Strong regional weather systems can also dominate a fire’s behavior for days and be the determining factor of where and how smoke will affect an area.

Smoke can travel for miles beyond its source. In 2020, smoke from wildfires in the Western United States drifted for nearly 5,000 miles, eventually being detected in Europe.

Smoke can travel for miles beyond its source. In 2020, smoke from wildfires in the western United States drifted for nearly 5,000 miles, eventually being detected in Europe.⁶

Wildfire safety tips

Wildfire smoke events can occur seemingly without warning. But there are steps you can take to prepare yourself using appropriate safety precautions for wildfires.

\n
Keep the air clean in your home. Keep windows and doors closed closed and seal off any openings to the outside, including vents, to help prevent outdoor smoke from getting in. When using an air conditioner, be sure to set it to re-circulate and close the fresh-air intake. Filter the air when ventilating the space. An air purifier for wildfire smoke, will help remove smoke particles of all sizes down to 0.003 microns from the indoor air and help control ozone levels. This is critical if you live in an urban area downwind (even remotely) from wildfires.
\n
\n
Stay indoors as much as possible. This tactic is most useful in buildings that effectively stop outdoor air from getting inside. If you need to travel by car to leave or evacuate an area affected by wildfire smoke, use a car air purifier to help keep your vehicle interior air clean as you pass through smoky or polluted areas. You can also use a portable, personal air purifier to access clean air where other air filtration systems are not available.
\n
\n
Wear a mask outdoors. Only use an air pollution mask with an N95, KN95, N100, or FFP2 rating to help.
\n
\n
Avoid activities that further pollute the indoor air. Avoid burning candles, using the fireplace, or even vacuuming unless you own a high-performance HEPA vacuum cleaner. All of these activities can otherwise become additional sources of indoor air pollutants.
\n
\n
Monitor your indoor air quality. Use an air quality monitor to track levels of indoor pollutants like PM2.5 and CO₂ from smoke and other indoor pollution sources. Take action if indoor air pollutants rise to dangerous levels by running an air purifier, circulating fresh air through your HVAC system, or leaving your home temporarily if indoor air becomes unsafe to breathe or your home is threatened by wildfire.
\n
\n
Use an air quality monitoring app to keep track of pollutants in your environment. The AirVisual app displays real-time hyperlocal data from over 80,000 sensors around the world. The app also tracks up to six key wildfire pollutants, such as PM2.5, CO₂, and NO₂, so that you have the best picture of your local air quality during a wildfire and can take action to help protect your health.
\n

$\"Google$ $\"App$ $\"Android\"$

Wildfires are increasing in frequency and intensity. Wildfire smoke can negatively affect your health, even if you’re far away from the actual fire. Learn to protect the health of yourself and your family, and rest assured that you’ve taken the necessary precautions.

During a wildfire, it’s also important to monitor your local air quality to see how wildfire smoke will affect your outdoor air.

The takeaway

Wildfires are increasing in frequency and intensity. Wildfire smoke can negatively affect your health, even if you’re far away from the actual fire. And while wildfire smoke may be a warning sign of imminent fires, smoke also delivers its own set of risks for people living miles beyond the source.

Though smoke pollutants carried on the wind may be invisible, their impacts are felt by those most at risk. Smoke pollutants pose health threats that range from irritation and cough to more serious respiratory and cardiac risks.

By helping control smoke pollutants that threaten our indoor air quality through monitoring and air purification, it's possible to help manage wildfire smoke health risks.

","how-to-protect-yourself-from-wildfire-smoke","gid://shopify/Article/564925399118","https://shop.iqair.cn/en/blogs/news/how-to-protect-yourself-from-wildfire-smoke","2022-12-29T21:46:38Z",[1204,694,1481,719],"Popular articles","How to protect yourself from wildfire smoke",{"_10":1484,"_202":1485,"_205":1486,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/269290668110","Wildfire at night in hills","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/AQL_21_WildfireDesktop_a_a1b7068f-eca7-44cf-a3d2-95dbd136001a.jpg?v=1749726938",{"_1142":1143,"_1144":1488,"_1133":1489,"_1149":1490,"_1151":1490,"_1153":1491,"_1155":1492,"_1001":1493,"_10":1494,"_1159":1495,"_1161":-5,"_1162":1496,"_634":1497,"_598":1498,"_1167":1499},{"_12":1146},{"_1001":1148},"How can you know what air purifier manufacturers to trust? Let's look more critically at air purification.","The home air purifier market has undergone many shifts and starts in its decades-long history as an affordable solution for indoor air quality. Along with those shifts have been seemingly ground breaking advancements in filtration technologies that may seem like the next revolution in air purification. But not all air purifiers safely clean the air. Not all air purifiers safely clean the air. Let's take an evidence-based approach to the industry and separate the fact from the fiction. What should I look for in an air purifier? Before we examine the various air purifiers on the market with a critical eye, it’s essential to have a solid understanding of what does make a good air purifier. 1. HEPA filters are the standard for the industry. What is a HEPA filter? High-efficiency particulate air (HEPA) filters capture airborne particles from moving air using a dense, random arrangement of fibers. HEPA filters use the physics of particles moving through air to yank them out of the air flow. Their operation is simple but extremely effective, and HEPA filters are now standard issue for almost every air purifier on the market. But it wasn’t always that way. Air purifiers have been around for well over a century. The first air purification systems appeared in the 1850s in charcoal-based masks used by coal miners. They were designed to keep toxic dust out of their lungs. The technology was so successful that, less than twenty years later, respirators were added to these types of masks to protect firefighters from breathing in smoke chemicals and pollutants (1). Beginning in the 1940s, the United States Atomic Energy Commission started experimenting with high-efficiency particulate arrestance, better known now as HEPA, as a method of shielding soldiers from atomic radiation on World War II battlefields (2). HEPA filters did nothing to filter radiation particles, but researchers quickly learned that HEPA filters could filter out many harmful pollutants. In 1963, Manfred and Klaus Hammes, the founders of IQAir, introduced the world’s first residential air filter based on HEPA technology, helping reduce indoor pollution as well as chronic asthma symptoms. Not long after, HEPA became so widespread that the U.S. Department of Energy (DOE) required that all filters sold under the name “HEPA” must filter at least 99.97% of airborne particles down to 0.3 microns (3). Since then, HEPA air purification has become the standard for the air purification industry. HEPA is now thrown around as a generic term for air filters, but HEPA filters continue to filter 99.97% of particles down to 0.3 microns. The HyperHEPA filter builds upon the HEPA model to create even more efficient filtration systems. Many manufacturers, including IQAir, have built upon the HEPA model to create even more efficient filtration systems. IQAir’s patented HyperHEPAfilter is one such filter. HyperHEPA filters remove 99.5% of particles down to 0.003 microns, which are 100 times smaller than the DOE’s required 0.3-micron particle size. 2. Not all air purifier designs are created equal. All air purifier manufacturers know that their filters need to live up to this HEPA standard. But long-standing, strict guidelines around air filters can provide a false sense of security in HEPA. To advertise an air purifier as HEPA, it only needs to contain HEPA paper, the paper used to construct a HEPA filter. Whether the air purifier’s Total System Efficiency meets HEPA requirements is another story. In fact, most HEPA air purifiers are not tested for total efficiency (4). The hidden factor at work here is leakage. Despite the high efficiency of many HEPA filters, the housing designs of many air purifiers are not airtight. This means that dirty, unfiltered air passes around the HEPA filter through tiny openings, cracks, and space around the frame of the HEPA filter itself or between the frame and the purifier housing (5). So even though many air purifiers claim that their HEPA filters remove nearly 100% of particles from the air that passes through them, they’re only telling part of the story. In some cases, the actual efficiency of the whole air purifier design, with leakage considered, is closer to 80% or less (6). Even though many air purifiers claim that their HEPA filters remove nearly 100% of particles from the air that passes through them, the actual efficiency of the whole air purifier design, with leakage considered, is closer to 80% or less. Some air purifier manufacturers have resolved this issue with designs that are built to minimize or eliminate leakage. IQAir uses patented 3D UltraSeal knife-edge-in-groove sealing between the filter frame and the purifier housing to guarantee the full efficiency of our HyperHEPA filtration media. 3. Concerned about gas and odors? Go beyond HEPA. While HyperHEPA filters are great at getting particles out of the air, they do NOT take gases and odors out of the air. Unlike particles, the molecules that comprise gases, odors, and volatile organic compounds (VOCs) are not solid and will float through even the densest HyperHEPA filters. That’s where activated carbon filters come in. How do these filters work? It’s simpler than you might think: Chunks of carbon material (like charcoal) are exposed to high concentrations of oxygen. Countless pores open on the carbon surface, increasing the carbon surface area enormously. At this point, a pound of activated carbon can have the same surface area as 100 football fields. Several pounds of activated carbon are arranged in a flat “bed” and packaged in a proprietary filter design (such as IQAir’s V5 Cell gas and odor control filter). Air passes through the activated carbon bed. Gas, chemical, and VOC molecules are adsorbed into the carbon pores, meaning that they chemically bond to the extensive charcoal surface area. Activated carbon adsorption is the go-to method of filtration for gases as well as chemical pollutants from vehicle emissions and combustion processes (7)(8). Activated carbon adsorption is the go-to method of filtration for gases as well as chemical pollutants from vehicle emissions and combustion processes. Some air purifiers are designed to maximize activated carbon in case you’re more concerned about, for example, gases from cooking or odors from pets than about particle pollution in your home. IQAir’s GC MultiGas is built for such a purpose—while carbon filters generally use a few pounds of carbon, the GC MultiGas contains 12 pounds of activated carbon as well as impregnated alumina, providing well over 1200 football fields worth of surface area for gas and VOC molecules to adsorb to. The takeaway Now you know that the elements of a good air purifier are: HyperHEPA media for particle filtration No system leakage due to sealed filter and purifier housing Activated carbon for gas and odor filtration But we're not done yet. Just as important to know is what not to look for in an air purifier. What should I avoid in an air purifier? When considering air purifiers, some people wonder about their effectiveness and even potential risks. Question often arise, such as \"Do air purifiers work?\" or \"Are air purifiers effective?\" The answer is that while some air cleaning methods can remove particles and pollutants from the air, their capabilities are often limited. But it's not just about effectiveness. People also ask, \"Are air purifiers bad for you?\" This concern arises from potential hidden costs to your health. It's important to be aware of inefficiencies and any potential risks associated with the air purifier you're considering before making a purchase. So, if you're in the market for an air purifier, remember to ask yourself whether it will be effective at removing pollutants and particles from the air, and whether it poses any risks to your health. Ionizer air purifiers Ionizers are purported to purify air by sending out negatively charged ions (anions) that attract positively charged pollution particles (cations), causing them to leave the air and stick to surfaces like ceilings, walls, and furniture. Many popular air purifiers use ionization technology, also called negative ionization, as a central component of their operation. Research suggests that ionizers can help stop potentially infectious molds and bacteria from spreading in sterile environments like dental clinics and hospitals (9)(10). But there are two critical downsides to ionization (11)(12): Ionizer air purifiersdon’t get rid of pollutants. Particles charged by negative ions aren’t removed from the air—they merely stick to surfaces nearby. This includes surfaces inside your airways, such as your windpipe and alveoli, the sacs of air in your lungs. Pollutant build-up can cause heart, lung, and other respiratory conditions. Ionizer air purifierscan generate harmful ozone. Ionizers produce ozone (O3) that can build up to dangerous levels indoors. At even low levels, indoor ozone can irritate your airways, trigger asthma attacks, damage your olfactory bulb (the organ that helps your brain process odors), and even be fatal at high concentrations. Indoor ozone can irritate your airways, trigger asthma attacks, damage your olfactory bulb, and even be fatal at high concentrations. Verdict Don't buy an ionizer air purifier.They don’t remove particles from the air, and the ozone they produce can have harmful side effects, even if the purifier claims that they only charge the particles “a little bit.” Ozone Generators It’s worth saying again: ozone is TERRIBLE for you, especially indoor ozone build-up. The health concerns are serious enough that in 2017, California banned the use of ozonehome air purifiers (13). Ozone generators use a process called corona discharge to release ozone molecules into the air. When an ozone molecule intermingles with a particle or gas molecule, an ozone atom clings to the other molecule and blows it up in a process known as oxidation. Oxidation in the atmosphere after a lightning strike is also what makes the air smell so distinct after a thunderstorm. However, ozone generators do little to clean air and are quite bad for you. Here’s just a short (and far from complete) list of reasons why (14)(15)(16)(17)(18): Ozone can take years to fully clear even a small room of gases. Ozone reactions can introduce ultrafine particles (UFPs) into the air.UFPs can get into your lungs and your bloodstream, causing heart disease and even stunting lung development in children. Indoor ozone levels can rise five to ten times above recommended limits,which range from 0.05 to 0.1 parts per million (ppm), because of a lack of ventilation and in combination with outdoor ozone that seeps indoors.To put this in perspective, those who are sensitive to ozone, such as children, people with asthma, and pets, start experiencing health effects at only 0.01 ppm. Even a “safe” ozone generator that emits a small amount of ozone can quickly trigger potentially life-threatening ailments like asthma attacks. Verdict Don’t buy an ozone generator. They’re NOT air purifiers. Not only do they fail to clean your air, they hurt you and the most vulnerable in your home: your children and your pets. UV Light Purifiers Ultraviolet (UV) light is often used to disinfect equipment in hospitals and prevent the spread of harmful strains of bacteria and viruses (19)(20). One of the most common UV purification methods is called ultraviolet germicidal irradiation, or UVGI. In UVGI, intense UV lights are shined on bacteria and viruses, damaging their DNA beyond repair. Bacterial cells and viruses then shut themselves down because they can no longer function. This is called apoptosis, or programmed cell death, which effectively destroys their ability to cause infections (21). But UV air purification isn’t all it’s cracked up to be. Here’s why(22) (23) (24) (25) (26): Bacteria and viruses need to be exposed to UV light for a certain amount of timebefore they’re rendered harmless: some strains need to be treated with UV for several hours in direct UV light before they’re destroyed.Home UV air purifiers don’t shine UV light on them long enough to be genuinely useful. Some bacteria can come back to life and become infectious again even after being disinfected by UV light. UV lights do nothing for pollutant particles.Air treated with UV light can still be full of harmful particulate matter, like PM10 and PM2.5. Many UV air purifiers produce ozone. UV light can burn your skin and damage your eyes. Sure, most UV purifiers block the light from shining out of the purifier, but even brief UV exposure can cause permanent skin and eye damage as well as cancer. Air treated with UV light can still be full of harmful particulate matter. Verdict Don’t buy a UV light air purifier. UV light somewhat disinfects but doesn’t purify air, and research shows that UV’s disinfection potential for air may be exaggerated. What do I do now? At this point, you should feel like you have a good sense of what’s fact and what’s fiction when it comes to a truly effective air purification system. So, what should you do now, armed with your knowledge of what makes a good air purifier? You have a multitude of options for maximizing your indoor air quality: Get a HyperHEPA air purifier. Patented HyperHEPA filtration technology removes 99.5% of pollutant particles down to 0.003 microns, the smallest particles in existence. Use advanced gas-phase filtration. Patented V5 Cell gas and odor control filters, used in HealthPro Series air purifiers, eliminateharmful chemicals and compounds with five pounds of activated carbon. The GC MultiGas features 12 pounds of activated carbon and impregnated alumina to help protect you against indoor gases and chemicals, in addition to our powerful HyperHEPA particle filtration. Use a personal air purifier. Atem Series personal air purifiers are equipped with HyperHEPA filtration technology and a PureJet diffuser that instantly blankets you in clean air. They’re sleek, compact, and portable, allowing you to breathe virtually pure air anytime, anywhere. Install a whole-house air purifier. Your heating, ventilation, and air conditioning (HVAC) system at home uses outdoor air to heat and cool your home, so even with an indoor air purifier, your air still might become polluted by outdoor particulates on days with poor air quality. The PerfectPro Series whole-house air purifier is equipped with the most powerful HyperHEPA filters available for a residential air purification systems. It fits seamlessly into your existing HVAC system, ensuring that air entering your home is always up to the highest possible standard of quality. Still not sure? Read about some of the misconceptions that surround air purification technology. Use our Help Me Choose tool to see what air purifier may work best for your indoor air quality needs. The most capable air purification technology is always backed by evidence-based facts and science. When it comes to choosing the best air purifier, science has got your back.","

The home air purifier market has undergone many shifts and starts in its decades-long history as an affordable solution for indoor air quality. Along with those shifts have been seemingly ground breaking advancements in filtration technologies that may seem like the next revolution in air purification.

But not all air purifiers safely clean the air.

Not all air purifiers safely clean the air.

Let's take an evidence-based approach to the industry and separate the fact from the fiction.

What should I look for in an air purifier?

Before we examine the various air purifiers on the market with a critical eye, it’s essential to have a solid understanding of what does make a good air purifier.

$\"Air$

1. HEPA filters are the standard for the industry.

What is a HEPA filter?

High-efficiency particulate air (HEPA) filters capture airborne particles from moving air using a dense, random arrangement of fibers. HEPA filters use the physics of particles moving through air to yank them out of the air flow. Their operation is simple but extremely effective, and HEPA filters are now standard issue for almost every air purifier on the market.

But it wasn’t always that way.

Air purifiers have been around for well over a century. The first air purification systems appeared in the 1850s in charcoal-based masks used by coal miners. They were designed to keep toxic dust out of their lungs. The technology was so successful that, less than twenty years later, respirators were added to these types of masks to protect firefighters from breathing in smoke chemicals and pollutants (1).

Beginning in the 1940s, the United States Atomic Energy Commission started experimenting with high-efficiency particulate arrestance, better known now as HEPA, as a method of shielding soldiers from atomic radiation on World War II battlefields (2).

HEPA filters did nothing to filter radiation particles, but researchers quickly learned that HEPA filters could filter out many harmful pollutants.

In 1963, Manfred and Klaus Hammes, the founders of IQAir, introduced the world’s first residential air filter based on HEPA technology, helping reduce indoor pollution as well as chronic asthma symptoms. Not long after, HEPA became so widespread that the U.S. Department of Energy (DOE) required that all filters sold under the name “HEPA” must filter at least 99.97% of airborne particles down to 0.3 microns (3).

Since then, HEPA air purification has become the standard for the air purification industry. HEPA is now thrown around as a generic term for air filters, but HEPA filters continue to filter 99.97% of particles down to 0.3 microns.

The HyperHEPA filter builds upon the HEPA model to create even more efficient filtration systems.

Many manufacturers, including IQAir, have built upon the HEPA model to create even more efficient filtration systems. IQAir’s patented HyperHEPAfilter is one such filter. HyperHEPA filters remove 99.5% of particles down to 0.003 microns, which are 100 times smaller than the DOE’s required 0.3-micron particle size.

2. Not all air purifier designs are created equal.

All air purifier manufacturers know that their filters need to live up to this HEPA standard. But long-standing, strict guidelines around air filters can provide a false sense of security in HEPA.

To advertise an air purifier as HEPA, it only needs to contain HEPA paper, the paper used to construct a HEPA filter. Whether the air purifier’s Total System Efficiency meets HEPA requirements is another story. In fact, most HEPA air purifiers are not tested for total efficiency (4).

The hidden factor at work here is leakage. Despite the high efficiency of many HEPA filters, the housing designs of many air purifiers are not airtight. This means that dirty, unfiltered air passes around the HEPA filter through tiny openings, cracks, and space around the frame of the HEPA filter itself or between the frame and the purifier housing (5).

So even though many air purifiers claim that their HEPA filters remove nearly 100% of particles from the air that passes through them, they’re only telling part of the story. In some cases, the actual efficiency of the whole air purifier design, with leakage considered, is closer to 80% or less (6).

Even though many air purifiers claim that their HEPA filters remove nearly 100% of particles from the air that passes through them, the actual efficiency of the whole air purifier design, with leakage considered, is closer to 80% or less.

Some air purifier manufacturers have resolved this issue with designs that are built to minimize or eliminate leakage. IQAir uses patented 3D UltraSeal knife-edge-in-groove sealing between the filter frame and the purifier housing to guarantee the full efficiency of our HyperHEPA filtration media.

3. Concerned about gas and odors? Go beyond HEPA.

While HyperHEPA filters are great at getting particles out of the air, they do NOT take gases and odors out of the air.

Unlike particles, the molecules that comprise gases, odors, and volatile organic compounds (VOCs) are not solid and will float through even the densest HyperHEPA filters. That’s where activated carbon filters come in.

How do these filters work? It’s simpler than you might think:

Chunks of carbon material (like charcoal) are exposed to high concentrations of oxygen.
Countless pores open on the carbon surface, increasing the carbon surface area enormously. At this point, a pound of activated carbon can have the same surface area as 100 football fields.
Several pounds of activated carbon are arranged in a flat “bed” and packaged in a proprietary filter design (such as IQAir’s V5 Cell gas and odor control filter).
Air passes through the activated carbon bed.
Gas, chemical, and VOC molecules are adsorbed into the carbon pores, meaning that they chemically bond to the extensive charcoal surface area.

Activated carbon adsorption is the go-to method of filtration for gases as well as chemical pollutants from vehicle emissions and combustion processes (7)(8).

Activated carbon adsorption is the go-to method of filtration for gases as well as chemical pollutants from vehicle emissions and combustion processes.

Some air purifiers are designed to maximize activated carbon in case you’re more concerned about, for example, gases from cooking or odors from pets than about particle pollution in your home. IQAir’s GC MultiGas is built for such a purpose—while carbon filters generally use a few pounds of carbon, the GC MultiGas contains 12 pounds of activated carbon as well as impregnated alumina, providing well over 1200 football fields worth of surface area for gas and VOC molecules to adsorb to.

The takeaway

Now you know that the elements of a good air purifier are:

\nHyperHEPA media for particle filtration
\nNo system leakage due to sealed filter and purifier housing
\nActivated carbon for gas and odor filtration

But we're not done yet. Just as important to know is what not to look for in an air purifier.

What should I avoid in an air purifier?

When considering air purifiers, some people wonder about their effectiveness and even potential risks. Question often arise, such as \"Do air purifiers work?\" or \"Are air purifiers effective?\" The answer is that while some air cleaning methods can remove particles and pollutants from the air, their capabilities are often limited.

But it's not just about effectiveness. People also ask, \"Are air purifiers bad for you?\" This concern arises from potential hidden costs to your health. It's important to be aware of inefficiencies and any potential risks associated with the air purifier you're considering before making a purchase.

So, if you're in the market for an air purifier, remember to ask yourself whether it will be effective at removing pollutants and particles from the air, and whether it poses any risks to your health.

Ionizer air purifiers

Ionizers are purported to purify air by sending out negatively charged ions (anions) that attract positively charged pollution particles (cations), causing them to leave the air and stick to surfaces like ceilings, walls, and furniture.

Many popular air purifiers use ionization technology, also called negative ionization, as a central component of their operation. Research suggests that ionizers can help stop potentially infectious molds and bacteria from spreading in sterile environments like dental clinics and hospitals (9)(10).

But there are two critical downsides to ionization (11)(12):

\nIonizer air purifiersdon’t get rid of pollutants. Particles charged by negative ions aren’t removed from the air—they merely stick to surfaces nearby. This includes surfaces inside your airways, such as your windpipe and alveoli, the sacs of air in your lungs. Pollutant build-up can cause heart, lung, and other respiratory conditions.
\nIonizer air purifierscan generate harmful ozone. Ionizers produce ozone (O3) that can build up to dangerous levels indoors. At even low levels, indoor ozone can irritate your airways, trigger asthma attacks, damage your olfactory bulb (the organ that helps your brain process odors), and even be fatal at high concentrations. \n

Indoor ozone can irritate your airways, trigger asthma attacks, damage your olfactory bulb, and even be fatal at high concentrations.

Verdict

Don't buy an ionizer air purifier.They don’t remove particles from the air, and the ozone they produce can have harmful side effects, even if the purifier claims that they only charge the particles “a little bit.”

Ozone Generators

It’s worth saying again: ozone is TERRIBLE for you, especially indoor ozone build-up. The health concerns are serious enough that in 2017, California banned the use of ozonehome air purifiers (13).

Ozone generators use a process called corona discharge to release ozone molecules into the air. When an ozone molecule intermingles with a particle or gas molecule, an ozone atom clings to the other molecule and blows it up in a process known as oxidation. Oxidation in the atmosphere after a lightning strike is also what makes the air smell so distinct after a thunderstorm.

However, ozone generators do little to clean air and are quite bad for you. Here’s just a short (and far from complete) list of reasons why (14)(15)(16)(17)(18):

\nOzone can take years to fully clear even a small room of gases.
\nOzone reactions can introduce ultrafine particles (UFPs) into the air.UFPs can get into your lungs and your bloodstream, causing heart disease and even stunting lung development in children.
\nIndoor ozone levels can rise five to ten times above recommended limits,which range from 0.05 to 0.1 parts per million (ppm), because of a lack of ventilation and in combination with outdoor ozone that seeps indoors.To put this in perspective, those who are sensitive to ozone, such as children, people with asthma, and pets, start experiencing health effects at only 0.01 ppm. Even a “safe” ozone generator that emits a small amount of ozone can quickly trigger potentially life-threatening ailments like asthma attacks.

Verdict

Don’t buy an ozone generator. They’re NOT air purifiers. Not only do they fail to clean your air, they hurt you and the most vulnerable in your home: your children and your pets.

UV Light Purifiers

Ultraviolet (UV) light is often used to disinfect equipment in hospitals and prevent the spread of harmful strains of bacteria and viruses (19)(20).

One of the most common UV purification methods is called ultraviolet germicidal irradiation, or UVGI.

In UVGI, intense UV lights are shined on bacteria and viruses, damaging their DNA beyond repair. Bacterial cells and viruses then shut themselves down because they can no longer function. This is called apoptosis, or programmed cell death, which effectively destroys their ability to cause infections (21).

But UV air purification isn’t all it’s cracked up to be. Here’s why(22) (23) (24) (25) (26):

\nBacteria and viruses need to be exposed to UV light for a certain amount of timebefore they’re rendered harmless: some strains need to be treated with UV for several hours in direct UV light before they’re destroyed.Home UV air purifiers don’t shine UV light on them long enough to be genuinely useful.
\nSome bacteria can come back to life and become infectious again even after being disinfected by UV light.
\nUV lights do nothing for pollutant particles.Air treated with UV light can still be full of harmful particulate matter, like PM10 and PM2.5.
Many UV air purifiers produce ozone.
\nUV light can burn your skin and damage your eyes. Sure, most UV purifiers block the light from shining out of the purifier, but even brief UV exposure can cause permanent skin and eye damage as well as cancer.

Air treated with UV light can still be full of harmful particulate matter.

Verdict

Don’t buy a UV light air purifier. UV light somewhat disinfects but doesn’t purify air, and research shows that UV’s disinfection potential for air may be exaggerated.

What do I do now?

At this point, you should feel like you have a good sense of what’s fact and what’s fiction when it comes to a truly effective air purification system.

So, what should you do now, armed with your knowledge of what makes a good air purifier? You have a multitude of options for maximizing your indoor air quality:

\nGet a HyperHEPA air purifier. Patented HyperHEPA filtration technology removes 99.5% of pollutant particles down to 0.003 microns, the smallest particles in existence.
\nUse advanced gas-phase filtration.\n
- Patented V5 Cell gas and odor control filters, used in HealthPro Series air purifiers, eliminateharmful chemicals and compounds with five pounds of activated carbon.
- The GC MultiGas features 12 pounds of activated carbon and impregnated alumina to help protect you against indoor gases and chemicals, in addition to our powerful HyperHEPA particle filtration.
\n
\nUse a personal air purifier. Atem Series personal air purifiers are equipped with HyperHEPA filtration technology and a PureJet diffuser that instantly blankets you in clean air. They’re sleek, compact, and portable, allowing you to breathe virtually pure air anytime, anywhere.
\nInstall a whole-house air purifier. Your heating, ventilation, and air conditioning (HVAC) system at home uses outdoor air to heat and cool your home, so even with an indoor air purifier, your air still might become polluted by outdoor particulates on days with poor air quality. The PerfectPro Series whole-house air purifier is equipped with the most powerful HyperHEPA filters available for a residential air purification systems. It fits seamlessly into your existing HVAC system, ensuring that air entering your home is always up to the highest possible standard of quality.

Still not sure? Read about some of the misconceptions that surround air purification technology. Use our Help Me Choose tool to see what air purifier may work best for your indoor air quality needs.

The most capable air purification technology is always backed by evidence-based facts and science. When it comes to choosing the best air purifier, science has got your back.

","do-air-purifiers-work-air-purifier-myths-and-facts-debunked","gid://shopify/Article/564925431886","https://shop.iqair.cn/en/blogs/news/do-air-purifiers-work-air-purifier-myths-and-facts-debunked","2022-01-02T14:14:32Z",[905,709,1481],"Do air purifiers work? Air purifier myths and facts debunked",{"_10":1500,"_202":1501,"_205":1502,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/270220755022","Close-up of what appears to be a room air purifier with some plants in the background (another indoor air purifying tool that has been shown to be ineffective in improving indoor air quality).","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/AQL_misconceptions-about-air-purifiers_993189ad-b0e5-4283-84af-8cf2c530fc4d.jpg?v=1758212556",{"_1142":1143,"_1144":1504,"_1133":1505,"_1149":1506,"_1151":1506,"_1153":1507,"_1155":1508,"_1001":1509,"_10":1510,"_1159":1511,"_1161":-5,"_1162":1512,"_634":1513,"_598":1514,"_1167":1515},{"_12":1146},{"_1001":1148},"They look great on your nightstand, but are they worth their salt as air purifiers? Learn more.","Himalayan salt lamps DO NOT purify indoor air.These trendy little lamps consist of a light bulb placed inside a chunk of pink Himalayan salt. They’re easily recognized by their hand-carved, often stylized shapes and dim, pinkish glow they emit when light shines through them.They’ve been gaining popularity for years, mostly because their distinct color and unique appearance make them attractive objects for interior decoration, and their glow can add a pleasing atmosphere to a room.But their recent rise in popularity as “natural” air purifiers should trouble you.A host of (often misleading) studies supporting the use of salt in treating respiratory conditions have escalated demand for these little pink things, especially within the well-primed alternative medicine market, full of people who may already be seeking home remedies for all sorts of health conditions and indoor environmental issues when modern medicine hasn’t seemed to help.And you shouldn’t buy a Himalayan salt lamp to purify your air for one major reason: they’re negative ionizers, and negative ionization is one of the most absurd air purification myths ever devised.Why are Himalayan salt lamps bad for air quality?Again, two words: negative ionization.If you ever hear the words “ionization” (in one form or another) and “air purification” in the same sentence, you should run in the opposite direction.In the context of air purification, negative ionization happens when negatively charged particles attach themselves, or “charge,” pollutant particles in the air, effectively removing them from ambient air by causing them to stick to nearby surfaces.This phenomenon also occurs in nature – know that distinct smell in the air after a thunderstorm? That’s the result of “atmospheric space charge” as air ions are generated by the electric fields of storms.1 Many air purifiers and purification devices sold in stores, including Himalayan salt lamps and a variety of “air ionizers,” artificially produce high voltage to achieve this same effect.The problem with negative ionization, though, is that it doesn’t actually remove pollutants from your indoor air – it just causes the particles to adhere themselves to nearby surfaces, where they’re easily stirred up by indoor activities like dusting, vacuuming, and ventilation.Charged particles can also stick to your respiratory tract, where charged particles can settle in your windpipe and lungs and cause even more harm that if they’d just remained in the air. Studies show that these particles can penetrate deep into your respiratory system and cause both heart and lung conditions.2The average, nightstand-sized Himalayan salt lamp generates only a small number of negative ions into the air, so you may not notice any tangible change in your air quality or health, at least immediately. But these lamps can be huge: you can buy salt lamps that weight up to 300 pounds for thousands of dollars, and their ionization effects may have a more noticeable effect on your air, especially if you live in an airtight, energy-efficient home in which indoor pollutants have a much harder time getting out.And negative ionizers have another dark secret: they can also create indoor ozone (O3).There are two main types of ozone: Stratospheric ozone: Alayer of ozone occurs naturally several miles up in the atmosphere, where it protects the surface of the earth (and people’s skin) from ultraviolet (UV) radiation from the sun. Tropospheric ozone: Also called ground-level ozone or smog, ground-level ozone tends to develop when heat from sunlight reacts with chemicals near the ground, many of which are produced by emissions from vehicle exhaust and factory smoke. Negative ionization can generate tropospheric ozone indoors. While stratospheric ozone has no interaction with us in the lower atmosphere, ground-level ozone is far more harmful when it builds up to high levels. And perhaps one of the starkest examples of ground-level ozone is one that millions of us know very well – the smog that forms in major cities during rush hour.If you live near a freeway, dense urban center, or even at a high elevation where you can see the area around an urban area. A few hours or less after rush hour begins and the sun begins to rise, you’ll start to notice a visible layer of haze build up. This is ground-level ozone, and even though it’s a typical feature of modern life, extensive research shows that it causes a plethora of immediate symptoms, including: Coughing Wheezing Trouble breathing Stuffy nose Dizziness Tingling in arms and legs Fever3,4 Further research suggests that ozone is also responsible for long-term health problems, such as asthma, heart disease, and lung disease. Emerging studies on rats also suggest that ozone could cause seizures and blindness.So even though you may not get rush-hour levels of ozone in your home from a salt lamp, indoor ozone buildup can indeed cause some disruptive health effects if you don’t follow best practices for good Indoor Air Quality.So what’s so special about Himalayan salt?So how did someone come up with the idea that Himalayan salt lamps have any health effects at all?The story stretches back millennia. Truly authentic Himalayan salt comes from the Khewra salt reserves in the Punjab region of Pakistan. Salt mined here is thought to be millions of years old and contain numerous minerals.Salt lamps have been proposed for use in treatments for conditions like chronic obstructive pulmonary disease (COPD) because of their purported therapeutic effects on your respiratory system. This treatment even has a clinical term: halotherapy, based on an ages-old respiratory treatment technique known as speleotherapy. First used in Eastern Europe, speleotherapy consists of spending time in a salt cave, where four environmental conditions are thought to help reduce symptoms of respiratory illness:5 Stable air temperature Moderate to high humidity Presence of aerosol elements, such as sodium, potassium, and magnesium Lack of airborne pollutants Halotherapy takes the notion that salt cave environments are good for respiratory health by having people inhale small amounts of salt particles that are released into the ambient air of a controlled room to “reproduce” a salt cave’s microclimate. But there’s no conclusive evidence that either speleotherapy or halotherapy actually relieve respiratory symptoms.6Take the claims with a grain of...well, saltSo here’s the takeaway: We’re not saying you shouldn’t get a Himalayan salt lamp. Their dim glow can be quite soothing at night when you’re trying to fall asleep.But they don’t purify air. And “air purifiers” that emits ions and ozone may make your indoor air quality worse, introduce new health problems, and exacerbate existing ones.You can take many precautions to monitorand keep your indoor air clean, but buying a salt lamp isn’t one of them. Try these proven methods instead: Be aware of your indoor air quality. The AirVisual Series consists of portable air quality monitors that use cutting-edge laser technology to give you real-time measurements of key pollutants, including particulate matter. AirVisual Series also provides 72-hour historical and forecast data so that you can know exactly when and why your indoor air quality changes. Control sources of poor indoor air quality. If you’re thinking about buying a salt lamp to purify your air, chances are that you do have air quality issues that you may be able to do something about. The first step to improving your indoor indoor air quality is source control.This means eliminating individual sources of pollution or reducing their emissions. Regularly clean your HVAC system ducts. Install a whole-house air purifier into your HVAC system to reduce indoor pollutants by up to 95%. Replace water-damaged areas of your home to prevent mold and dust mites. Keep paints, solvents, and other chemicals in well-ventilated areas. Ventilate your home. Let in fresh air regularly to lower the concentrations of indoor air pollutants. This is especially important if you live in an airtight, energy-efficient home in which indoor pollutants have nowhere to go and thus build up to dangerous levels. Open doors and windows when outdoor air quality is good. Use a range hood for your stove to capture gases and volatile organic compounds (VOCs) from cooking. Use an air purifier with HyperHEPA technology. The IQAir HealthPro Plusis the best air purifier for even the smallest pollutant particles, removing up to 99.5% of particulates down to 0.003 microns, like viruses and ultrafine particles from vehicle exhaust. The Atempersonal air purifier can also provide pure, pollutant-free air directly into your personal breathing zone. Sure, a salt lamp can be a nice accessory and bring some calm into your home. But there’s plenty you can do to actually keep your indoor air clean and bring yourself some peace of mind knowing that your home is a clean air sanctuary.","

Himalayan salt lamps DO NOT purify indoor air.

These trendy little lamps consist of a light bulb placed inside a chunk of pink Himalayan salt. They’re easily recognized by their hand-carved, often stylized shapes and dim, pinkish glow they emit when light shines through them.

They’ve been gaining popularity for years, mostly because their distinct color and unique appearance make them attractive objects for interior decoration, and their glow can add a pleasing atmosphere to a room.

But their recent rise in popularity as “natural” air purifiers should trouble you.

A host of (often misleading) studies supporting the use of salt in treating respiratory conditions have escalated demand for these little pink things, especially within the well-primed alternative medicine market, full of people who may already be seeking home remedies for all sorts of health conditions and indoor environmental issues when modern medicine hasn’t seemed to help.

And you shouldn’t buy a Himalayan salt lamp to purify your air for one major reason: they’re negative ionizers, and negative ionization is one of the most absurd air purification myths ever devised.

Why are Himalayan salt lamps bad for air quality?

Again, two words: negative ionization.

If you ever hear the words “ionization” (in one form or another) and “air purification” in the same sentence, you should run in the opposite direction.

In the context of air purification, negative ionization happens when negatively charged particles attach themselves, or “charge,” pollutant particles in the air, effectively removing them from ambient air by causing them to stick to nearby surfaces.

This phenomenon also occurs in nature – know that distinct smell in the air after a thunderstorm? That’s the result of “atmospheric space charge” as air ions are generated by the electric fields of storms.¹ Many air purifiers and purification devices sold in stores, including Himalayan salt lamps and a variety of “air ionizers,” artificially produce high voltage to achieve this same effect.

The problem with negative ionization, though, is that it doesn’t actually remove pollutants from your indoor air – it just causes the particles to adhere themselves to nearby surfaces, where they’re easily stirred up by indoor activities like dusting, vacuuming, and ventilation.

Charged particles can also stick to your respiratory tract, where charged particles can settle in your windpipe and lungs and cause even more harm that if they’d just remained in the air. Studies show that these particles can penetrate deep into your respiratory system and cause both heart and lung conditions.²

The average, nightstand-sized Himalayan salt lamp generates only a small number of negative ions into the air, so you may not notice any tangible change in your air quality or health, at least immediately. But these lamps can be huge: you can buy salt lamps that weight up to 300 pounds for thousands of dollars, and their ionization effects may have a more noticeable effect on your air, especially if you live in an airtight, energy-efficient home in which indoor pollutants have a much harder time getting out.

And negative ionizers have another dark secret: they can also create indoor ozone (O₃).

There are two main types of ozone:

\nStratospheric ozone: Alayer of ozone occurs naturally several miles up in the atmosphere, where it protects the surface of the earth (and people’s skin) from ultraviolet (UV) radiation from the sun.
\nTropospheric ozone: Also called ground-level ozone or smog, ground-level ozone tends to develop when heat from sunlight reacts with chemicals near the ground, many of which are produced by emissions from vehicle exhaust and factory smoke.

Negative ionization can generate tropospheric ozone indoors. While stratospheric ozone has no interaction with us in the lower atmosphere, ground-level ozone is far more harmful when it builds up to high levels. And perhaps one of the starkest examples of ground-level ozone is one that millions of us know very well – the smog that forms in major cities during rush hour.

If you live near a freeway, dense urban center, or even at a high elevation where you can see the area around an urban area. A few hours or less after rush hour begins and the sun begins to rise, you’ll start to notice a visible layer of haze build up. This is ground-level ozone, and even though it’s a typical feature of modern life, extensive research shows that it causes a plethora of immediate symptoms, including:

Coughing
Wheezing
Trouble breathing
Stuffy nose
Dizziness
Tingling in arms and legs
Fever^3,4\n

Further research suggests that ozone is also responsible for long-term health problems, such as asthma, heart disease, and lung disease. Emerging studies on rats also suggest that ozone could cause seizures and blindness.

So even though you may not get rush-hour levels of ozone in your home from a salt lamp, indoor ozone buildup can indeed cause some disruptive health effects if you don’t follow best practices for good Indoor Air Quality.

So what’s so special about Himalayan salt?

So how did someone come up with the idea that Himalayan salt lamps have any health effects at all?

The story stretches back millennia. Truly authentic Himalayan salt comes from the Khewra salt reserves in the Punjab region of Pakistan. Salt mined here is thought to be millions of years old and contain numerous minerals.

Salt lamps have been proposed for use in treatments for conditions like chronic obstructive pulmonary disease (COPD) because of their purported therapeutic effects on your respiratory system. This treatment even has a clinical term: halotherapy, based on an ages-old respiratory treatment technique known as speleotherapy. First used in Eastern Europe, speleotherapy consists of spending time in a salt cave, where four environmental conditions are thought to help reduce symptoms of respiratory illness:⁵

Stable air temperature
Moderate to high humidity
Presence of aerosol elements, such as sodium, potassium, and magnesium
Lack of airborne pollutants

Halotherapy takes the notion that salt cave environments are good for respiratory health by having people inhale small amounts of salt particles that are released into the ambient air of a controlled room to “reproduce” a salt cave’s microclimate. But there’s no conclusive evidence that either speleotherapy or halotherapy actually relieve respiratory symptoms.⁶

Take the claims with a grain of...well, salt

So here’s the takeaway: We’re not saying you shouldn’t get a Himalayan salt lamp. Their dim glow can be quite soothing at night when you’re trying to fall asleep.

But they don’t purify air. And “air purifiers” that emits ions and ozone may make your indoor air quality worse, introduce new health problems, and exacerbate existing ones.

You can take many precautions to monitorand keep your indoor air clean, but buying a salt lamp isn’t one of them. Try these proven methods instead:

\nBe aware of your indoor air quality. The AirVisual Series consists of portable air quality monitors that use cutting-edge laser technology to give you real-time measurements of key pollutants, including particulate matter. AirVisual Series also provides 72-hour historical and forecast data so that you can know exactly when and why your indoor air quality changes.
\nControl sources of poor indoor air quality. If you’re thinking about buying a salt lamp to purify your air, chances are that you do have air quality issues that you may be able to do something about. The first step to improving your indoor indoor air quality is source control.This means eliminating individual sources of pollution or reducing their emissions.\n\n\t
- Regularly clean your HVAC system ducts. Install a whole-house air purifier into your HVAC system to reduce indoor pollutants by up to 95%.
- Replace water-damaged areas of your home to prevent mold and dust mites.
- Keep paints, solvents, and other chemicals in well-ventilated areas.
\n\n\t
\nVentilate your home. Let in fresh air regularly to lower the concentrations of indoor air pollutants. This is especially important if you live in an airtight, energy-efficient home in which indoor pollutants have nowhere to go and thus build up to dangerous levels.\n\n\t
- Open doors and windows when outdoor air quality is good.
- Use a range hood for your stove to capture gases and volatile organic compounds (VOCs) from cooking.
\n\n\t
\nUse an air purifier with HyperHEPA technology. The IQAir HealthPro Plusis the best air purifier for even the smallest pollutant particles, removing up to 99.5% of particulates down to 0.003 microns, like viruses and ultrafine particles from vehicle exhaust. The Atempersonal air purifier can also provide pure, pollutant-free air directly into your personal breathing zone.

Sure, a salt lamp can be a nice accessory and bring some calm into your home. But there’s plenty you can do to actually keep your indoor air clean and bring yourself some peace of mind knowing that your home is a clean air sanctuary.
\n\n

","himalayan-salt-lamp-debunked","gid://shopify/Article/564925366350","https://shop.iqair.cn/en/blogs/news/himalayan-salt-lamp-debunked","2019-06-17T13:49:29Z",[1204,709,1481],"Himalayan salt lamps: Worth their salt?",{"_10":1516,"_202":1517,"_205":1518,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/269475545166","Why are Himalayan salt lamps bad for air quality?","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/AQL_HimalayanSalt_061419_750_0b979b61-4b6f-4eeb-8061-88996d52278e.jpg?v=1751543619",{"_1142":1143,"_1144":1520,"_1133":1521,"_1149":1522,"_1151":1522,"_1153":1523,"_1155":1524,"_1001":1525,"_10":1526,"_1159":1527,"_1161":-5,"_1162":1528,"_634":1529,"_598":1530,"_1167":1531},{"_12":1146},{"_1001":1148},"Learn more how scented candles release harmful chemicals into the air — even when unlit — and can harm your health.","Are scented candles bad for you?Burning a scented candle is a popular way to create a pleasant ambiance at home. Scents such aslavender, jasmine, and sandalwood can be relaxing and invigorating. During the holidays, many people find the warm glow and aroma of pine, gingerbread, or cinnamon makes a room feel more festive.Unfortunately, most mass-produced scented candles can have a negative impact on indoor air quality. From the wax to the wick to the fragrance itself, the average scented candle can release harmful chemicals into the air — even when unlit.From the wax to the wick to the fragrance itself, the average scented candle can release harmful chemicals into the air — even when unlit.So while you and your family may enjoy the fragrance of scented candles in your home, they may be harmful to your health. Read on to learn why some candles are bad for you.Paraffin waxAre paraffin wax candles safe? In what way can wax be harmful?According to a 2017 study in the International Journal of Tropical Disease and Health, paraffin candles emit pollutants that can threaten human health and shouldn’t be burned in enclosed areas (1).Most candles are made from paraffin, a petroleum byproduct. To create paraffin wax candles, petroleum waste is chemically bleached, deodorized, and made into wax. When burned, paraffin wax can release toxicvolatile organic compounds (VOCs) into the air, including known carcinogens like: alkenes acetone benzene toluene These are the same chemicals found in diesel fuel emissions and are known to cause allergies, asthma attacks, and skin problems.A 2005 study published by the University of South Florida showed that candles made of paraffin wax emit low levels of benzene even when they are not lit (2).Is burning candles bad for you?In addition to releasing toxic chemicals, burning paraffin wax produces soot composed of particulate matter such as, PM2.5 and ultrafine particles that can remain suspended in the air for hours. According to the University of South Florida study, ultrafine soot particles are similar to diesel exhaust in both their size and composition. They penetrate deeply into the lungs and are absorbed into the blood stream (3).A 2000 study conducted by the U.S. Environmental Protection Agency showed that soot emissions from candles are significantly higher after wax breakthrough occurs and when a candle is smoldering (4).Ultrafine particles are associated with severe health issues, including: allergies asthma COPD (5) respiratory tract infections heart attacks strokes cancer So, are candles bad for your health? Not all candles produce the same amount of air pollutants. A 2002 study published in theJournal of the American Oil Chemists’ Society found that soywax, much like beeswax candles, burned at a significantly lower rate and resulted in less soot than paraffin candles (6).Chemical fragrancesAnother problem with scented candles is that the chemicals they use to create a pleasing aroma are generally far from wholesome.Most scented candles use synthetic fragrances and dyes that give off dangerous VOCs even at room temperature.Most scented candles use synthetic fragrances and dyes that give off dangerous VOCs even at room temperature. Commonly emitted VOCs related to the scent in candles include (7): formaldehyde petroleum distillates limonene alcohol esters These harmful chemicals can cause health problems, such as: headaches dizziness allergy symptoms asthma attacks respiratory tract infections cancer Cored wicksMany candles have cored wicks made from cotton that are wrapped around a metal support. The design helps keep the wick from falling over into the wax. This is especially useful for scented candles because the fragrance oils soften the wax and allow non-cored wicks to go limp.Are candles toxic? If they have lead in them, possibly. Lead was once commonly used in cored candlewicks — especially in candles imported from overseas. However, after determining that these wicks could present a lead poisoning hazard to young children, the U.S. Consumer Product Safety Commission banned the manufacture and sale of all candles with lead-core wicks in 2003 (8). Zinc and tin have been used as a substitute since the ban.All metal-core wicks release trace amounts of heavy metals into the air when they are burned.However, all metal-core wicks release trace amounts of heavy metals into the air when they are burned. Wicks with zinc and tin cores can still release small amounts of lead particles (9,10).Safer alternativesTo limit soot stains and poor air quality in your home, you should avoid or restrict the use of candles (11).If you still crave the pleasant ambiance and aroma of scented candles, here are safer ways to scent the air: Use essential oils for fragrance.Essential oils can be placed in a diffuser or in bathwater to create a desired aroma. Simmer spices.Place spices such as cinnamon sticks, cloves, and nutmeg in a pot of water and let it simmer on the stove. Create potpourri.Dried items such as flowers, berries, fruit rinds, wood chips, and spices can be placed in bowls or fabric bags and placed around your home. The takeawayLighting scented candles may seem like a relaxing way to enjoy your home. But burning scented candles releases VOC pollutants and worsens your home’s indoor air quality. Although fragrances from safer alternatives like essential oils can be pleasant, trulyclean air smells like nothing at all.","

Are scented candles bad for you?

Burning a scented candle is a popular way to create a pleasant ambiance at home. Scents such aslavender, jasmine, and sandalwood can be relaxing and invigorating. During the holidays, many people find the warm glow and aroma of pine, gingerbread, or cinnamon makes a room feel more festive.

Unfortunately, most mass-produced scented candles can have a negative impact on indoor air quality. From the wax to the wick to the fragrance itself, the average scented candle can release harmful chemicals into the air — even when unlit.

From the wax to the wick to the fragrance itself, the average scented candle can release harmful chemicals into the air — even when unlit.

So while you and your family may enjoy the fragrance of scented candles in your home, they may be harmful to your health. Read on to learn why some candles are bad for you.

Paraffin wax

Are paraffin wax candles safe? In what way can wax be harmful?

According to a 2017 study in the International Journal of Tropical Disease and Health, paraffin candles emit pollutants that can threaten human health and shouldn’t be burned in enclosed areas (1).

Most candles are made from paraffin, a petroleum byproduct. To create paraffin wax candles, petroleum waste is chemically bleached, deodorized, and made into wax. When burned, paraffin wax can release toxicvolatile organic compounds (VOCs) into the air, including known carcinogens like:

alkenes
acetone
benzene
toluene

These are the same chemicals found in diesel fuel emissions and are known to cause allergies, asthma attacks, and skin problems.

A 2005 study published by the University of South Florida showed that candles made of paraffin wax emit low levels of benzene even when they are not lit (2).

Is burning candles bad for you?

In addition to releasing toxic chemicals, burning paraffin wax produces soot composed of particulate matter such as, PM2.5 and ultrafine particles that can remain suspended in the air for hours. According to the University of South Florida study, ultrafine soot particles are similar to diesel exhaust in both their size and composition. They penetrate deeply into the lungs and are absorbed into the blood stream (3).

A 2000 study conducted by the U.S. Environmental Protection Agency showed that soot emissions from candles are significantly higher after wax breakthrough occurs and when a candle is smoldering (4).

Ultrafine particles are associated with severe health issues, including:

allergies
asthma
COPD (5)
respiratory tract infections
heart attacks
strokes
cancer

So, are candles bad for your health? Not all candles produce the same amount of air pollutants. A 2002 study published in theJournal of the American Oil Chemists’ Society found that soywax, much like beeswax candles, burned at a significantly lower rate and resulted in less soot than paraffin candles (6).

Chemical fragrances

Another problem with scented candles is that the chemicals they use to create a pleasing aroma are generally far from wholesome.

Most scented candles use synthetic fragrances and dyes that give off dangerous VOCs even at room temperature.

Most scented candles use synthetic fragrances and dyes that give off dangerous VOCs even at room temperature. Commonly emitted VOCs related to the scent in candles include (7):

formaldehyde
petroleum distillates
limonene
alcohol
esters

These harmful chemicals can cause health problems, such as:

headaches
dizziness
allergy symptoms
asthma attacks
respiratory tract infections
cancer
\n\n\t

Cored wicks

Many candles have cored wicks made from cotton that are wrapped around a metal support. The design helps keep the wick from falling over into the wax. This is especially useful for scented candles because the fragrance oils soften the wax and allow non-cored wicks to go limp.

Are candles toxic? If they have lead in them, possibly. Lead was once commonly used in cored candlewicks — especially in candles imported from overseas. However, after determining that these wicks could present a lead poisoning hazard to young children, the U.S. Consumer Product Safety Commission banned the manufacture and sale of all candles with lead-core wicks in 2003 (8). Zinc and tin have been used as a substitute since the ban.

All metal-core wicks release trace amounts of heavy metals into the air when they are burned.

However, all metal-core wicks release trace amounts of heavy metals into the air when they are burned. Wicks with zinc and tin cores can still release small amounts of lead particles (9,10).

Safer alternatives

To limit soot stains and poor air quality in your home, you should avoid or restrict the use of candles (11).

If you still crave the pleasant ambiance and aroma of scented candles, here are safer ways to scent the air:

\nUse essential oils for fragrance.Essential oils can be placed in a diffuser or in bathwater to create a desired aroma.
\nSimmer spices.Place spices such as cinnamon sticks, cloves, and nutmeg in a pot of water and let it simmer on the stove.
\nCreate potpourri.Dried items such as flowers, berries, fruit rinds, wood chips, and spices can be placed in bowls or fabric bags and placed around your home.

The takeaway

Lighting scented candles may seem like a relaxing way to enjoy your home. But burning scented candles releases VOC pollutants and worsens your home’s indoor air quality. Although fragrances from safer alternatives like essential oils can be pleasant, trulyclean air smells like nothing at all.

","hidden-dangers-scented-candles","gid://shopify/Article/564925464654","https://shop.iqair.cn/en/blogs/news/hidden-dangers-scented-candles","2016-12-04T22:35:53Z",[709,1481],"The hidden dangers of scented candles",{"_10":1532,"_202":1533,"_205":1534,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/269279461454","Two lit candles","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/49_scented_desktop_RE_8f4a0295-45a8-421d-870a-900787fa96cc.jpg?v=1749633122","successStories",[1537,1554,1571,1588],{"_1142":1143,"_1144":1538,"_1133":1539,"_1149":1540,"_1151":1541,"_1153":1542,"_1155":1543,"_1001":1544,"_10":1545,"_1159":1546,"_1161":-5,"_1162":1547,"_634":1548,"_598":1549,"_1167":1550},{"_12":1146},{"_1001":1148},"Discover how Tedy Mwendwa's air quality monitoring project in Nairobi is bridging critical gaps in Africa's air quality data. Learn more.","

Discover how Tedy Mwendwa's air quality monitoring project in Nairobi is bridging critical gaps in Africa's air quality data. Learn more.

","“Every day, I witness the severe impact of poor air quality on my community,” Tedy Mwendwa explained. “Using my expertise in electrical engineering, I felt compelled to create change.” In the heart of Africa, amidst bustling cities and vibrant rural landscapes, Mwendwa is pioneering a movement for cleaner air in Kenya. With a professional foundation in electrical engineering and a passion for environmental stewardship, Mwendwa's deployment of a low-cost air quality sensor in Kenya’s capital city, Nairobi, marks a pivotal step in revealing and addressing pollution and bridging critical gaps in Africa’s air quality data. Nairobi's leap towards cleaner air In late 2021, Mwendwa established an air quality station. Set up along one of Nairobi’s busy thoroughfares, the station gathers data on pollutants from sources like vehicular exhaust and biomass burning. \"It's about leveraging technology to unveil the hidden dangers of pollution.” “It's about leveraging technology to unveil the hidden dangers of pollution,” Mwendwa said. “Empowering our community with this data is crucial for driving action and advocating for sustainable solutions. Without data, we remain in the dark.” Local expertise, global resources drive innovation Building on the foundation of community-driven air monitoring, the project has taken a step forward. It now hosts East Africa’s first Monster Aerosol System (a platform that houses advanced aerosol analyzers), featuring a Time-of-Flight Aerosol Chemical Speciation Monitor (TOF-ACSM). This technology provides real-time, high-resolution data on airborne particles—including nitrates, ammonium, and chlorides—uncovering the chemical fingerprints of pollution with unprecedented precision. Paired with a black carbon monitor, the system offers a comprehensive view of airborne composition and sources. These reference-grade instruments build on the project’s original IQAir AirVisual Outdoor monitor—pairing community-level, real-time data with laboratory-grade chemical insight. The TOF-ACSM will help identify pollution sources—from mineral dust kicked up by unpaved roads and construction to organic aerosols tied to biomass burning and traffic emissions. It will also track seasonal and daily shifts in air quality, influenced by weather patterns and human activity. The initiative is expanding further with the deployment of GRIMM EDM 180 reference monitors across Nairobi, replacing older equipment to deliver faster, more accurate readings with minimal maintenance. In collaboration with the Kenya National Highways Authority (KENHA), these monitors will be placed along major highways and construction zones, ensuring data reflects the realities of urban life. These advancements are part of the NBO-CHEM Project (Nairobi Aerosol Chemistry and Monitoring Initiative), an effort funded by the U.S. National Science Foundation (NSF) and led by Prof. Daniel M. Westervelt, Dr. Godwin Opinde, and Tedy Mwendwa. By combining local expertise with state-of-the-art scientific resources, the project aims to transform how we understand air pollution in East Africa. The challenge of air quality monitoring in Africa The new additions to the project are heartening developments towards advancing air quality understanding in East Africa. Yet, despite the increasing efforts to monitor air quality globally, Africa remains one of the most underrepresented continents in terms of air quality data. According to the 2024 World Air Quality Report, there is only one monitoring station for every 3.7 million people. While coverage has expanded to include more African countries in recent years, there are still vast areas without sufficient data. For example, countries like Niger and Sudan remain without publicly available monitoring data.Air pollution is a major health threat, causing an estimated seven million premature deaths worldwide each year. Without accurate data, it is challenging to address the sources and impacts of air pollution effectively. Grassroots efforts like Mwendwa's are crucial in filling these data gaps, providing models for further projects and inspiring broader initiatives. Harnessing technology for a healthier tomorrow Utilizing an AirVisual Outdoor air quality monitor, Mwendwa’s station gathers critical real-time data. “The AirVisual sensor was easy to deploy and requires little maintenance, even in our somewhat extreme conditions with limited resources,” he said.The project, though small, is already making a difference in the community. “By sharing a link to the AirVisual Platform and using the app, we can easily get our data to students nationwide, enabling them to conduct their own research on pollution,” he said. The data has also been used to inform parents with small children of the effects of poor air quality. \"They need to understand that this data can help give them a better life,\" Mwendwa said. Cultivating environmental consciousness Mwendwa envisions a future where air quality stations span Africa, fostering a culture of environmental awareness and proactive health management. “The data my station is gathering empowers students to conduct community research, highlighting pollution's impact and fostering greater understanding,” he said. “This awareness can significantly influence the general population.\"Mwendwa plans further collaborations with local governments, communities, and international bodies, with this initial project laying a foundation for sustainable environmental policies and practices. “Our goal is to illuminate the unseen threats of pollution through technology,” he said. “Providing our community, and beyond, with this data, equips them to advocate for sustainable solutions essential for a healthier future. Without data, we are navigating blindly.” “Providing our community with this data equips them to advocate for sustainable solutions essential for a healthier future.” Conclusion From a low-cost sensor to a full NBO-CHEM reference hybrid network, Mwendwa’s project shows how local leadership and modern tools can accelerate Kenya’s clean-air progress. The project is an invitation to communities and policymakers to engage in a similar quest for healthier environments.Mwendwa's efforts symbolize more than geographic growth—they embody the momentum of a global movement dedicated to clean air. His work exemplifies uniting technology, data, and collective engagement to tackle one of our era's most pressing challenges.Achieving cleaner air is a communal endeavor, demanding innovation and cooperation. Mwendwa's project is a rallying cry to all, inviting participation in crafting a healthier, sustainable future for generations to come.","

“Every day, I witness the severe impact of poor air quality on my community,” Tedy Mwendwa explained. “Using my expertise in electrical engineering, I felt compelled to create change.”

In the heart of Africa, amidst bustling cities and vibrant rural landscapes, Mwendwa is pioneering a movement for cleaner air in Kenya. With a professional foundation in electrical engineering and a passion for environmental stewardship, Mwendwa's deployment of a low-cost air quality sensor in Kenya’s capital city, Nairobi, marks a pivotal step in revealing and addressing pollution and bridging critical gaps in Africa’s air quality data.

Nairobi's leap towards cleaner air

In late 2021, Mwendwa established an air quality station. Set up along one of Nairobi’s busy thoroughfares, the station gathers data on pollutants from sources like vehicular exhaust and biomass burning.

\"It's about leveraging technology to unveil the hidden dangers of pollution.”

“It's about leveraging technology to unveil the hidden dangers of pollution,” Mwendwa said. “Empowering our community with this data is crucial for driving action and advocating for sustainable solutions. Without data, we remain in the dark.”

Local expertise, global resources drive innovation

Building on the foundation of community-driven air monitoring, the project has taken a step forward. It now hosts East Africa’s first Monster Aerosol System (a platform that houses advanced aerosol analyzers), featuring a Time-of-Flight Aerosol Chemical Speciation Monitor (TOF-ACSM). This technology provides real-time, high-resolution data on airborne particles—including nitrates, ammonium, and chlorides—uncovering the chemical fingerprints of pollution with unprecedented precision. Paired with a black carbon monitor, the system offers a comprehensive view of airborne composition and sources. These reference-grade instruments build on the project’s original IQAir AirVisual Outdoor monitor—pairing community-level, real-time data with laboratory-grade chemical insight.

The TOF-ACSM will help identify pollution sources—from mineral dust kicked up by unpaved roads and construction to organic aerosols tied to biomass burning and traffic emissions. It will also track seasonal and daily shifts in air quality, influenced by weather patterns and human activity.

The initiative is expanding further with the deployment of GRIMM EDM 180 reference monitors across Nairobi, replacing older equipment to deliver faster, more accurate readings with minimal maintenance. In collaboration with the Kenya National Highways Authority (KENHA), these monitors will be placed along major highways and construction zones, ensuring data reflects the realities of urban life.

These advancements are part of the NBO-CHEM Project (Nairobi Aerosol Chemistry and Monitoring Initiative), an effort funded by the U.S. National Science Foundation (NSF) and led by Prof. Daniel M. Westervelt, Dr. Godwin Opinde, and Tedy Mwendwa.

By combining local expertise with state-of-the-art scientific resources, the project aims to transform how we understand air pollution in East Africa.

The challenge of air quality monitoring in Africa

The new additions to the project are heartening developments towards advancing air quality understanding in East Africa. Yet, despite the increasing efforts to monitor air quality globally, Africa remains one of the most underrepresented continents in terms of air quality data. According to the 2024 World Air Quality Report , there is only one monitoring station for every 3.7 million people.

While coverage has expanded to include more African countries in recent years, there are still vast areas without sufficient data. For example, countries like Niger and Sudan remain without publicly available monitoring data.

Air pollution is a major health threat, causing an estimated seven million premature deaths worldwide each year. Without accurate data, it is challenging to address the sources and impacts of air pollution effectively. Grassroots efforts like Mwendwa's are crucial in filling these data gaps, providing models for further projects and inspiring broader initiatives.

Harnessing technology for a healthier tomorrow

Utilizing an AirVisual Outdoor air quality monitor, Mwendwa’s station gathers critical real-time data. “The AirVisual sensor was easy to deploy and requires little maintenance, even in our somewhat extreme conditions with limited resources,” he said.

The project, though small, is already making a difference in the community. “By sharing a link to the AirVisual Platform and using the app, we can easily get our data to students nationwide, enabling them to conduct their own research on pollution,” he said. The data has also been used to inform parents with small children of the effects of poor air quality. \"They need to understand that this data can help give them a better life,\" Mwendwa said.

Cultivating environmental consciousness

Mwendwa envisions a future where air quality stations span Africa, fostering a culture of environmental awareness and proactive health management. “The data my station is gathering empowers students to conduct community research, highlighting pollution's impact and fostering greater understanding,” he said. “This awareness can significantly influence the general population.\"

Mwendwa plans further collaborations with local governments, communities, and international bodies, with this initial project laying a foundation for sustainable environmental policies and practices. “Our goal is to illuminate the unseen threats of pollution through technology,” he said. “Providing our community, and beyond, with this data, equips them to advocate for sustainable solutions essential for a healthier future. Without data, we are navigating blindly.”

“Providing our community with this data equips them to advocate for sustainable solutions essential for a healthier future.”

Conclusion

From a low-cost sensor to a full NBO-CHEM reference hybrid network, Mwendwa’s project shows how local leadership and modern tools can accelerate Kenya’s clean-air progress. The project is an invitation to communities and policymakers to engage in a similar quest for healthier environments.

Mwendwa's efforts symbolize more than geographic growth—they embody the momentum of a global movement dedicated to clean air. His work exemplifies uniting technology, data, and collective engagement to tackle one of our era's most pressing challenges.

Achieving cleaner air is a communal endeavor, demanding innovation and cooperation. Mwendwa's project is a rallying cry to all, inviting participation in crafting a healthier, sustainable future for generations to come.

","revealing-the-invisible-kenya","gid://shopify/Article/634090586190","https://shop.iqair.cn/en/blogs/news/revealing-the-invisible-kenya","2025-12-01T13:00:00Z",[704,890],"Revealing the Invisible: Boosting air quality awareness in Kenya",{"_10":1551,"_202":1552,"_205":1553,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/271197536334","Nairobi-city-smog","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/AQL_Revamp_Kenya_Clean_Air_Desktop_17bb0503-bb60-4348-89cf-60970c96defc.jpg?v=1767630564",{"_1142":1143,"_1144":1555,"_1133":1556,"_1149":1557,"_1151":1558,"_1153":1559,"_1155":1560,"_1001":1561,"_10":1562,"_1159":1563,"_1161":-5,"_1162":1564,"_634":1565,"_598":1566,"_1167":1567},{"_12":1146},{"_1001":1148},"WWF Pakistan is tackling air pollution with IQAir. Learn how real-time data is driving change across the country.","

WWF Pakistan is tackling air pollution with IQAir. Learn how real-time data is driving change across the country.

","In Pakistan, where vast horizons stretch beneath seemingly clear skies, severe air pollution silently impacts public health and well-being nationwide. Yet, due to a dire lack of data and awareness, the scale of the threat remains largely unseen. Recognizing the urgency of this crisis, WWF-Pakistan has taken significant steps to address air pollution using IQAir’s air quality monitoring technology. WWF-Pakistan has successfully deployed 15 stations across Pakistan and published data to IQAir’s AirVisual platform, establishing the country’s largest air quality monitoring network. With this initiative, WWF-Pakistan is transforming how the country understands and confronts this invisible threat. \"We have successfully reached the goal of installing AirVisual Outdoor sensors in 15 of our offices across Pakistan,\" said WWF-Pakistan’s Research Officer, Muhammad Huzaifa who led this initiative in Pakistan. As of now, WWF-Pakistan has air monitoring stations located in key regions like Karachi, Lahore, Quetta, Multan, and Peshawar. They provide real-time data that is accessible to both policymakers and the public. \"We are excited to say that we’ve published the data from these stations to IQAir’s platform, where communities can see their local air quality in real-time.” Pakistan's Air Quality Challenge Pakistan's urban centers, such as Lahore, Peshawar and Karachi, frequently grapple with thick layers of smog. While this is a visible reminder of air pollution, the more dangerous pollutants often remain unseen and unmonitored. One of the greatest challenges in Pakistan has been the need for more reliable, public air quality data. \"Our air quality network provides crucial air quality data in some of Pakistan’s most polluted regions, and are often ranked among the top 10 most polluted cities in the world\" Huzaifa explained. WWF-Pakistan, the nation’s largest environmental organization, has been addressing critical environmental issues since 1970. Originally focused on protecting wildlife and ecosystems, the organization’s scope has broadened to include tackling climate change, protecting vulnerable habitats, and securing vital resources like freshwater. Now, through their air quality monitoring initiative, they are addressing one of the most pressing health and environmental crises facing Pakistan. “Unfortunately, there is little public air quality data available,” Huzaifa noted. “This information vacuum has left policymakers and citizens unprepared to tackle the pollution crisis.” WWF-Pakistan’s initiative helps fill this gap, ensuring the public has access to real-time, localized air quality data. With real-time data now available, citizens, governments, and policymakers can work together to implement solutions, reduce pollution and improve health outcomes across the country. Rolling Out Pakistan’s Air Quality Network WWF-Pakistan’s initiative, which involves installing a total of air quality sensors in 15 key cities across the country, marks a critical step in Pakistan’s battle against air pollution. All 15 stations are currently up and running. Partnering with IQAir adds both credibility and precision to the project. \"IQAir's AirVisual air quality monitors are globally recognized for their accuracy and ability to track even the smallest fluctuations in air quality,\" said Huzaifa. \"IQAir's technology is built to withstand all sorts of weather and having it in place ensures that people will trust the data.\" This transparency is essential for mobilizing both community efforts and policy interventions, as reliable information is crucial to driving meaningful change. Air Quality Data in Action With the sensors online and data flowing into the IQAir platform, WWF-Pakistan's live contributor profile showcases the impact of their work, allowing anyone to monitor air quality in real-time. This transparency empowers citizens and policymakers alike to take informed action, using reliable data to drive meaningful change across the country. Explore WWF-Pakistan’s profile to see the live data from their monitoring stations across Pakistan. \"Data isn’t just a tool for awareness—it’s the foundation for meaningful action,\" Nazifa Butt, Director Climate Action and Sustainability WWF-Pakistan emphasized. “Now that we have the data, we have something to report and base our decisions on.” Nazifa emphasized the importance of storytelling. “We’re going to have to tell two parts of the story,” she explained, pointing out how data can not only expose alarming trends but also inspire communities to push for change—through policies, advocacy, and local initiatives. Vision For the Future WWF-Pakistan envisions a future where every region of the country has access to real-time, accurate air quality data. \"Each sensor we deploy is a step closer to a healthier, more sustainable Pakistan,\" Nazifa explained. By providing access to this data, WWF-Pakistan aims to foster a culture of proactive health management, where individuals and communities can take the steps necessary to protect themselves from pollution. The air quality data being gathered is more than just numbers—it’s a lifeline for communities struggling with the dangers of polluted air. “Our initiative is laying the foundation for a National Clean Air Research Centre,\" Huzaifa said. \"This will be a hub for research and data-driven policies, enabling us to tackle pollution with innovative strategies.\" “Each sensor we deploy is a step closer to a healthier, more sustainable Pakistan.” Beyond their air quality monitoring project, the WWF-Pakistan team oversees more than 70 active environmental protection initiatives in FY 2024 across the country, ranging from clean water access and forest preservation to sustainable infrastructure development. These efforts, working in tandem with the air quality monitoring network, are all part of WWF's broader mission to protect the planet's natural environment and create a future where both people and nature can thrive in harmony. Conclusion WWF-Pakistan's initiative is a testament to the transformative power of data, technology, and collective will in addressing one of today’s most pressing challenges. As this vital work advances, it invites everyone to contribute to the cause—because in the fight for clean air, every voice and every action matters. “This initiative,” Nazifa said, “lays the foundation for what we envision as Pakistan’s future air quality innovation hub. It will serve as a hub for developing strategies and methods to tackle air pollution, aligning efforts across governmental and non-governmental sectors, both locally and internationally, in the fight against climate change.”","

In Pakistan, where vast horizons stretch beneath seemingly clear skies, severe air pollution silently impacts public health and well-being nationwide. Yet, due to a dire lack of data and awareness, the scale of the threat remains largely unseen.

Recognizing the urgency of this crisis, WWF-Pakistan has taken significant steps to address air pollution using IQAir’s air quality monitoring technology. WWF-Pakistan has successfully deployed 15 stations across Pakistan and published data to IQAir’s AirVisual platform, establishing the country’s largest air quality monitoring network. With this initiative, WWF-Pakistan is transforming how the country understands and confronts this invisible threat.

\"We have successfully reached the goal of installing AirVisual Outdoor sensors in 15 of our offices across Pakistan,\" said WWF-Pakistan’s Research Officer, Muhammad Huzaifa who led this initiative in Pakistan.

As of now, WWF-Pakistan has air monitoring stations located in key regions like Karachi, Lahore, Quetta, Multan, and Peshawar. They provide real-time data that is accessible to both policymakers and the public. \"We are excited to say that we’ve published the data from these stations to IQAir’s platform, where communities can see their local air quality in real-time.”

Pakistan's Air Quality Challenge

Pakistan's urban centers, such as Lahore, Peshawar and Karachi, frequently grapple with thick layers of smog. While this is a visible reminder of air pollution, the more dangerous pollutants often remain unseen and unmonitored. One of the greatest challenges in Pakistan has been the need for more reliable, public air quality data.

\"Our air quality network provides crucial air quality data in some of Pakistan’s most polluted regions, and are often ranked among the top 10 most polluted cities in the world\" Huzaifa explained.

WWF-Pakistan, the nation’s largest environmental organization, has been addressing critical environmental issues since 1970. Originally focused on protecting wildlife and ecosystems, the organization’s scope has broadened to include tackling climate change, protecting vulnerable habitats, and securing vital resources like freshwater. Now, through their air quality monitoring initiative, they are addressing one of the most pressing health and environmental crises facing Pakistan.

“Unfortunately, there is little public air quality data available,” Huzaifa noted. “This information vacuum has left policymakers and citizens unprepared to tackle the pollution crisis.” WWF-Pakistan’s initiative helps fill this gap, ensuring the public has access to real-time, localized air quality data.

With real-time data now available, citizens, governments, and policymakers can work together to implement solutions, reduce pollution and improve health outcomes across the country.

Rolling Out Pakistan’s Air Quality Network

WWF-Pakistan’s initiative, which involves installing a total of air quality sensors in 15 key cities across the country, marks a critical step in Pakistan’s battle against air pollution. All 15 stations are currently up and running.

Partnering with IQAir adds both credibility and precision to the project. \"IQAir's AirVisual air quality monitors are globally recognized for their accuracy and ability to track even the smallest fluctuations in air quality,\" said Huzaifa. \"IQAir's technology is built to withstand all sorts of weather and having it in place ensures that people will trust the data.\" This transparency is essential for mobilizing both community efforts and policy interventions, as reliable information is crucial to driving meaningful change.

Air Quality Data in Action

With the sensors online and data flowing into the IQAir platform, WWF-Pakistan's live contributor profile showcases the impact of their work, allowing anyone to monitor air quality in real-time. This transparency empowers citizens and policymakers alike to take informed action, using reliable data to drive meaningful change across the country. Explore WWF-Pakistan’s profile to see the live data from their monitoring stations across Pakistan.

\"Data isn’t just a tool for awareness—it’s the foundation for meaningful action,\" Nazifa Butt, Director Climate Action and Sustainability WWF-Pakistan emphasized. “Now that we have the data, we have something to report and base our decisions on.”

Nazifa emphasized the importance of storytelling. “We’re going to have to tell two parts of the story,” she explained, pointing out how data can not only expose alarming trends but also inspire communities to push for change—through policies, advocacy, and local initiatives.

Vision For the Future

WWF-Pakistan envisions a future where every region of the country has access to real-time, accurate air quality data.

\"Each sensor we deploy is a step closer to a healthier, more sustainable Pakistan,\" Nazifa explained. By providing access to this data, WWF-Pakistan aims to foster a culture of proactive health management, where individuals and communities can take the steps necessary to protect themselves from pollution.

The air quality data being gathered is more than just numbers—it’s a lifeline for communities struggling with the dangers of polluted air. “Our initiative is laying the foundation for a National Clean Air Research Centre,\" Huzaifa said. \"This will be a hub for research and data-driven policies, enabling us to tackle pollution with innovative strategies.\"

“Each sensor we deploy is a step closer to a healthier, more sustainable Pakistan.”

Beyond their air quality monitoring project, the WWF-Pakistan team oversees more than 70 active environmental protection initiatives in FY 2024 across the country, ranging from clean water access and forest preservation to sustainable infrastructure development. These efforts, working in tandem with the air quality monitoring network, are all part of WWF's broader mission to protect the planet's natural environment and create a future where both people and nature can thrive in harmony.

Conclusion

WWF-Pakistan's initiative is a testament to the transformative power of data, technology, and collective will in addressing one of today’s most pressing challenges. As this vital work advances, it invites everyone to contribute to the cause—because in the fight for clean air, every voice and every action matters.

“This initiative,” Nazifa said, “lays the foundation for what we envision as Pakistan’s future air quality innovation hub. It will serve as a hub for developing strategies and methods to tackle air pollution, aligning efforts across governmental and non-governmental sectors, both locally and internationally, in the fight against climate change.”

","revealing-the-invisible-wwf-pakistan","gid://shopify/Article/634659078222","https://shop.iqair.cn/en/blogs/news/revealing-the-invisible-wwf-pakistan","2025-11-12T17:43:22Z",[699,704,890],"Revealing the Invisible: WWF-Pakistan’s mission for clean air",{"_10":1568,"_202":1569,"_205":1570,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/270766047310","WWF Team standing Next to Solar Panel","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/AQL_PakistanContributor_Desk_A_1ed3d785-94f0-4a6f-af87-5d895532bd30.jpg?v=1762969405",{"_1142":1143,"_1144":1572,"_1133":1573,"_1149":1574,"_1151":1575,"_1153":1576,"_1155":1577,"_1001":1578,"_10":1579,"_1159":1580,"_1161":-5,"_1162":1581,"_634":1582,"_598":1583,"_1167":1584},{"_12":1146},{"_1001":1148},"Learn about Permian Health's innovative approach to improving air quality in Gambia, using cutting-edge technology to reveal invisible pollutants and safeguard public health.","

Learn about Permian Health's innovative approach to improving air quality in Gambia, using cutting-edge technology to reveal invisible pollutants and safeguard public health.

","In the slender West African nation of Gambia, Dr. Sunkaru Touray of Permian Health Lung Institute is leading an unprecedented initiative to illuminate the invisible dangers of air pollution through the strategic deployment of low-cost air quality monitors. A vision born from necessity Dr. Touray, a pulmonologist and critical care physician originally from Kartong, The Gambia, was profoundly affected by the respiratory issues he encountered while practicing in New Mexico. These issues, often linked to hydrocarbon exposure and environmental pollutants, spurred him to address similar problems in Gambia, where air quality data is scarce. \"There's a significant data gap in Africa when it comes to understanding our air,\" Dr. Touray noted. Recognizing the parallels between New Mexico and Gambia, Dr. Touray envisioned the Permian Health Clean Air Initiative. This initiative aims not only to collect data but to empower Gambians with knowledge, enabling them to make informed decisions about their health and advocate for cleaner air. “There’s a significant data gap in Africa when it comes to understanding our air.”–Dr. Sunkaru Touray, Founder, Permian Health The journey of Permian Health Permian Health's mission is clear: to democratize access to air quality data in Gambia by installing low-cost air quality monitors throughout the country. The team selected IQAir’s AirVisual outdoor monitors for this critical work. “These devices are proven to be reliable, user-friendly, and can operate on solar power,” Dr. Touray said. “They also have 4G LTE connectivity,” which make the monitors ideally suited for Gambia's diverse environments—from the bustling streets of Banjul to the rural countryside. \"The goal,\" Dr. Touray explained, \"is not just to collect data but to empower our communities with knowledge so they can make informed decisions about their health and advocate for cleaner air.\" Highlighting areas of concern: Brikama’s air quality Brikama stands as a poignant example of the challenges faced across Gambia. Known for its bustling markets and as a hub for both commerce and community life, the town also grapples with air quality issues that pose risks to its residents. By placing monitors in strategic locations, including the busy highway through Brikama, Permian Health is mapping pollution levels and raising awareness among the local population about the air they breathe daily—while simultaneously acting as a testament to the potential of grassroots air monitoring networks in challenging regions. Dr Touray said, \"As we look to the future, the lessons learned from Brikama will inform our expansion strategies to other regions facing similar challenges. Our success in achieving nationwide coverage, with Brikama as a keystone in our network, exemplifies the scalable model of Permian Health Clean Air Initiative.” “The goal is not to just collect the data but to empower our communities with knowledge so they can make informed decisions about their health.” Local feedback has been largely positive. According to Dr. Touray, real-time access to air quality monitor information has improved local understanding of the dangers of poor air quality, especially during the dry, dusty Harmattan season typically experienced from November to March. Permian Health has collaborated with local groups such as the Brikama Nema Diaspora Group (BRIND) and Karamie’s Health clinic to install sensors in key areas, allowing residents and medical professionals to access real-time air quality data. Pioneering work on the ground To date, the Permian Health air quality network has grown to 14 sensors, achieving nationwide coverage with an air quality sensor in all regions of The Gambia—proof of the project's rapid scalability and success. The project has successfully installed air quality monitors in various locations, including urban areas and industrial sites. These monitors provide real-time data on pollutants like PM2.5, which pose the greatest threat to human health, offering invaluable insights into the air pollution across different regions of Gambia. \"We have sensors in the most densely populated areas,” Dr. Touray said. \"Through the process of collecting PM 2.5 data in Gambia and identifying pollution hotspots, we educate the public about air quality and its impact on public health—and also communicate the importance of installing air quality sensors as a means to make a change.\" This foundational work sets the stage for enhanced accuracy and credibility in air quality monitoring, as underscored by a pivotal development in the project's journey. “The recent addition of a reference-grade monitor donated by MetOne marks a significant leap in our capacity for precision and validation of the data collected by our existing sensor network,” Dr. Touray said. However, maintaining and expanding the network can be impeded by dust accumulation on solar panels during the Harmattan season, unreliable power supplies, and other issues. ‘While we have made significant progress in addressing some of these challenges, connectivity and maintenance in remote areas remain ongoing hurdles in our efforts to maintain and expand the sensor network efficiently,’ Dr. Touray explained. Uniting minds and garnering accolades To raise awareness about their work, Permian Health has created a promotional video which serves as a powerful tool to inform and engage the public about their project. A key milestone for the project was the establishment of the first air quality conference in Gambia, bringing together stakeholders from the government, academia, and civil society to discuss the findings and implications of the collected data. \"This conference was a pivotal moment for us, marking the beginning of a national conversation on air quality,\" reflects Dr. Touray. This national conversation is already making a policy impact. The Ministry of Health has issued public health advisories several times since the air quality sensors were deployed, raising air quality awareness in communities around the country. Dr. Touray emphasizes the importance of partnering with the Gambian government to leverage their data for national air quality standards and planning. \"Working closely with governmental bodies is crucial for our success,\" Dr. Touray notes, highlighting his strong connections within the National Environment Agency, which have been supportive of their endeavors. With the NEA, Permian Health was able to release their first air quality report based on initial installations. This sets the table for future updates from newly installed sensors. Additionally, the project's recent recognition by the Energy Policy Institute of the University of Chicago with an Air Quality Award highlights the global acknowledgment of their impactful work. This prestigious award will enable Permian Health to scale their network further. Currently, there are 22 low-cost sensors deployed, and Gambia will, for the first time ever, have a reference monitor to assist in enhancing air quality monitoring and assessment. Hopes for the Future Thanks to their recent Air Quality Award, Permian Health acquired an 10 sensors, bringing the total to 26 sensors across The Gambia. Six new sensors have been deployed to NEA headquarters, two major health centers with support from the Ministry of Health, and in housing developments in partnership with Gambia’s largest real estate company, TAF Africa Global. The remaining sensors will be deployed to the National Stadium, Gambia International Airport, the Seaport in Banjul, and a major intersection as soon as final government approvals are processed. Dr. Touray envisions a future where every Gambian has access to air quality information, enabling them to protect themselves and their families from air pollution. Furthermore, he hopes to leverage the data collected to advocate for stronger environmental policies and regulations in Gambia. “We’re not just collecting data for the sake of it. We want to drive change.” \"We're not just collecting data for the sake of it. We want to drive change,\" says Dr. Touray. \"Our ultimate goal is for Gambia to set national air quality standards, informed by the comprehensive data we've gathered.\" A key step toward this goal is the second Clean Air Conference, which Permian Health is organizing in partnership with the NEA. The event will bring together stakeholders, including officials from the ministries of Health, Environment, Transport, and Education, to develop a national air quality work plan. According to Dr. Touray, Permian Health is conducting an inventory assessment to determine the key sources of pollution, such as waste burning, reliance on charcoal and firewood for cooking, and transport-related emissions. \"Looking ahead, we aim to strengthen our collaboration with the NEA and the Ministry of Health, to expand and maintain our sensor network.\" \"We plan to enhance public awareness campaigns, especially during high-risk periods, to better inform the community about air quality concerns. We would also like to engage more with local TV stations for them to display air quality and weather information from our network. The takeaway Dr. Sunkaru Touray's work with Permian Health exemplifies innovative activism. The project not only addresses air quality data gaps but also empowers communities to tackle air pollution—an issue that transcends borders. Dr. Touray's mission goes beyond monitoring; it's about transforming the fabric of public health through the lens of air quality.","

In the slender West African nation of Gambia, Dr. Sunkaru Touray of Permian Health Lung Institute is leading an unprecedented initiative to illuminate the invisible dangers of air pollution through the strategic deployment of low-cost air quality monitors.

A vision born from necessity

Dr. Touray, a pulmonologist and critical care physician originally from Kartong, The Gambia, was profoundly affected by the respiratory issues he encountered while practicing in New Mexico. These issues, often linked to hydrocarbon exposure and environmental pollutants, spurred him to address similar problems in Gambia, where air quality data is scarce. \"There's a significant data gap in Africa when it comes to understanding our air,\" Dr. Touray noted.

Recognizing the parallels between New Mexico and Gambia, Dr. Touray envisioned the Permian Health Clean Air Initiative. This initiative aims not only to collect data but to empower Gambians with knowledge, enabling them to make informed decisions about their health and advocate for cleaner air.

“There’s a significant data gap in Africa when it comes to understanding our air.”

–Dr. Sunkaru Touray, Founder, Permian Health

The journey of Permian Health

Permian Health's mission is clear: to democratize access to air quality data in Gambia by installing low-cost air quality monitors throughout the country. The team selected IQAir’s AirVisual outdoor monitors for this critical work. “These devices are proven to be reliable, user-friendly, and can operate on solar power,” Dr. Touray said. “They also have 4G LTE connectivity,” which make the monitors ideally suited for Gambia's diverse environments—from the bustling streets of Banjul to the rural countryside.

\"The goal,\" Dr. Touray explained, \"is not just to collect data but to empower our communities with knowledge so they can make informed decisions about their health and advocate for cleaner air.\"

\nHighlighting areas of concern: Brikama’s air quality\n

Brikama stands as a poignant example of the challenges faced across Gambia. Known for its bustling markets and as a hub for both commerce and community life, the town also grapples with air quality issues that pose risks to its residents. By placing monitors in strategic locations, including the busy highway through Brikama, Permian Health is mapping pollution levels and raising awareness among the local population about the air they breathe daily—while simultaneously acting as a testament to the potential of grassroots air monitoring networks in challenging regions.

$\"\"$

Dr Touray said, \"As we look to the future, the lessons learned from Brikama will inform our expansion strategies to other regions facing similar challenges. Our success in achieving nationwide coverage, with Brikama as a keystone in our network, exemplifies the scalable model of Permian Health Clean Air Initiative.”

“The goal is not to just collect the data but to empower our communities with knowledge so they can make informed decisions about their health.”

Local feedback has been largely positive. According to Dr. Touray, real-time access to air quality monitor information has improved local understanding of the dangers of poor air quality, especially during the dry, dusty Harmattan season typically experienced from November to March.

Permian Health has collaborated with local groups such as the Brikama Nema Diaspora Group (BRIND) and Karamie’s Health clinic to install sensors in key areas, allowing residents and medical professionals to access real-time air quality data.

Pioneering work on the ground

To date, the Permian Health air quality network has grown to 14 sensors, achieving nationwide coverage with an air quality sensor in all regions of The Gambia—proof of the project's rapid scalability and success. The project has successfully installed air quality monitors in various locations, including urban areas and industrial sites. These monitors provide real-time data on pollutants like PM2.5, which pose the greatest threat to human health, offering invaluable insights into the air pollution across different regions of Gambia.

\"We have sensors in the most densely populated areas,” Dr. Touray said. \"Through the process of collecting PM 2.5 data in Gambia and identifying pollution hotspots, we educate the public about air quality and its impact on public health—and also communicate the importance of installing air quality sensors as a means to make a change.\"

This foundational work sets the stage for enhanced accuracy and credibility in air quality monitoring, as underscored by a pivotal development in the project's journey. “The recent addition of a reference-grade monitor donated by MetOne marks a significant leap in our capacity for precision and validation of the data collected by our existing sensor network,” Dr. Touray said.

However, maintaining and expanding the network can be impeded by dust accumulation on solar panels during the Harmattan season, unreliable power supplies, and other issues.

‘While we have made significant progress in addressing some of these challenges, connectivity and maintenance in remote areas remain ongoing hurdles in our efforts to maintain and expand the sensor network efficiently,’ Dr. Touray explained.

Uniting minds and garnering accolades

To raise awareness about their work, Permian Health has created a promotional video which serves as a powerful tool to inform and engage the public about their project.

A key milestone for the project was the establishment of the first air quality conference in Gambia, bringing together stakeholders from the government, academia, and civil society to discuss the findings and implications of the collected data.

\"This conference was a pivotal moment for us, marking the beginning of a national conversation on air quality,\" reflects Dr. Touray.

This national conversation is already making a policy impact. The Ministry of Health has issued public health advisories several times since the air quality sensors were deployed, raising air quality awareness in communities around the country.

Dr. Touray emphasizes the importance of partnering with the Gambian government to leverage their data for national air quality standards and planning. \"Working closely with governmental bodies is crucial for our success,\" Dr. Touray notes, highlighting his strong connections within the National Environment Agency, which have been supportive of their endeavors.

With the NEA, Permian Health was able to release their first air quality report based on initial installations. This sets the table for future updates from newly installed sensors.

Additionally, the project's recent recognition by the Energy Policy Institute of the University of Chicago with an Air Quality Award highlights the global acknowledgment of their impactful work. This prestigious award will enable Permian Health to scale their network further.

Currently, there are 22 low-cost sensors deployed, and Gambia will, for the first time ever, have a reference monitor to assist in enhancing air quality monitoring and assessment.

Hopes for the Future

Thanks to their recent Air Quality Award, Permian Health acquired an 10 sensors, bringing the total to 26 sensors across The Gambia.

$\"\"$

Six new sensors have been deployed to NEA headquarters, two major health centers with support from the Ministry of Health, and in housing developments in partnership with Gambia’s largest real estate company, TAF Africa Global. The remaining sensors will be deployed to the National Stadium, Gambia International Airport, the Seaport in Banjul, and a major intersection as soon as final government approvals are processed.

Dr. Touray envisions a future where every Gambian has access to air quality information, enabling them to protect themselves and their families from air pollution. Furthermore, he hopes to leverage the data collected to advocate for stronger environmental policies and regulations in Gambia.

“We’re not just collecting data for the sake of it. We want to drive change.”

\"We're not just collecting data for the sake of it. We want to drive change,\" says Dr. Touray. \"Our ultimate goal is for Gambia to set national air quality standards, informed by the comprehensive data we've gathered.\"

A key step toward this goal is the second Clean Air Conference, which Permian Health is organizing in partnership with the NEA. The event will bring together stakeholders, including officials from the ministries of Health, Environment, Transport, and Education, to develop a national air quality work plan.

According to Dr. Touray, Permian Health is conducting an inventory assessment to determine the key sources of pollution, such as waste burning, reliance on charcoal and firewood for cooking, and transport-related emissions. \"Looking ahead, we aim to strengthen our collaboration with the NEA and the Ministry of Health, to expand and maintain our sensor network.\"

\"We plan to enhance public awareness campaigns, especially during high-risk periods, to better inform the community about air quality concerns. We would also like to engage more with local TV stations for them to display air quality and weather information from our network.

The takeaway

Dr. Sunkaru Touray's work with Permian Health exemplifies innovative activism. The project not only addresses air quality data gaps but also empowers communities to tackle air pollution—an issue that transcends borders.

Dr. Touray's mission goes beyond monitoring; it's about transforming the fabric of public health through the lens of air quality.

","permian-health-air-quality-crusade-in-gambia","gid://shopify/Article/634018988110","https://shop.iqair.cn/en/blogs/news/permian-health-air-quality-crusade-in-gambia","2025-03-24T17:00:00Z",[699,704,890],"Revealing the Invisible: Permian Health’s Air Quality Crusade in Gambia",{"_10":1585,"_202":1586,"_205":1587,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/269813416014","Man working on pole","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/PermianHealth_Desk_A_e25c0fb4-f682-4892-bbc6-5c8e0d753ac9.jpg?v=1754481444",{"_1142":1143,"_1144":1589,"_1133":1590,"_1149":1591,"_1151":1592,"_1153":1593,"_1155":1594,"_1001":1595,"_10":1596,"_1159":1597,"_1161":-5,"_1162":1598,"_634":1599,"_598":1601,"_1167":1602},{"_12":1146},{"_1001":1148},"A kitten rescue in Ontario needed a powerful clean air solution fast – and found it. Learn more about the essential role of clean air in shelters.","

A kitten rescue in Ontario needed a powerful clean air solution fast – and found it. Learn more about the essential role of clean air in shelters.

","Nestled in a small town near Cornwall, Canada, Tiny but Mighty Kitten Rescue serves as a lifeline for abandoned and vulnerable kittens (1). For nearly eight years, rescue founder Mellissa has worked tirelessly to save and nurture the most fragile feline lives in the region. Yet despite Mellissa’s dedication to maintaining a clean environment for those in her care, animal rescues must always contend with a formidable health challenge. Poor air quality impacts both kittens and the humans who care for them. Thanks to advanced air purification technology, the rescue now breathes easier—literally and figuratively. Mission built on compassion Mellissa’s journey to creating Tiny but Mighty began with heartbreak. As a volunteer at her local animal shelter, she learned of the euthanasia of kittens deemed too young to care for. Unwilling to accept this outcome, she founded her own kitten-focused rescue in 2017. “I had so many dreams about saving these kittens. Something told me to just do it myself—start my own rescue.” “I had so many dreams about saving these kittens. They wouldn’t let up,” Mellissa shared. “Something told me to just do it myself—start my own rescue.” Mellissa provides a safe space for kittens to grow and thrive until they find their carefully screened forever homes. Today, the rescue operates solely on donations and community support. “It’s such an incredible community. People do come through to support what I’m doing, so it’s incredible.” But running a rescue isn’t without its challenges, and one significant one she uncovered was air quality. Nova the kitten enjoying toys at the Tiny but Mighty Kitten Rescue. Good air quality: Essential in animal rescues Caring for kittens in any enclosed environment presents unique challenges. Despite her meticulous cleaning habits, Mellissa found air quality to be a problem. “The dust is crazy. The kittens will go in their litter box and sneeze.” There would still be dust, odors, and allergens in the space “even though I use 99% dust-free litter.” Mellissa explained. “It’s great compared to some I’ve tried, but the dust is crazy. The kittens will go in their litter box and make little sneezes.” This poor air quality not only affected visitors but also had potential health implications for the kittens and Mellissa herself. Dust mites, microscopic creatures that feed on animal’s dead skin, can cause year-round allergic reactions in both cats and humans, including sneezing, runny and itchy noses, watery eyes, and even rashes. Components of pet dander can also act as an allergen, triggering similar reactions. Determined to find a solution to her dust problem, she began her search for an air purifier that could meet the rescue’s unique needs. Life changing air cleaning solution Determined to tackle the persistent dust and allergens, Mellissa sought an air purifier that could truly meet the unique demands of her rescue. After years of frustration with a previous model, she knew she needed a solution that could handle constant activity, fine dust particles, and odors effectively. Mellissa recalled, “The dust was still spreading throughout the house, and I thought, ‘this is just not enough.’” That’s when Mellissa’s father suggested looking into IQAir’s HealthPro Plus XE. Intrigued by its reputation for advanced filtration capabilities, Mellissa decided to give it a try—and the results were immediate and noticeable. The HealthPro Plus XE is equipped with HyperHEPA filtration, capable of capturing particles as small as 0.003 microns—100 times smaller than most air purifiers can filter. This efficiency, proven to remove particles far smaller than bacteria or viruses, combined with gas-phase filtration to eliminate odors, made it an ideal solution for the rescue’s air quality challenges. “The kittens aren’t sneezing anymore. The air purifier has had a huge impact,” Mellissa shared. The HealthPro Plus XE at work next to Leia the cat. Not only did she see a dramatic improvement in the air quality for the kittens, but visitors also noticed the difference. The previously lingering food and litter odors were gone. “I definitely don’t smell that anymore,” Mellissa said. “I’m really impressed.” “The kittens aren’t sneezing anymore. The air purifier has had a huge impact.” When it comes to daily use, Mellissa has found a setup that works perfectly for the rescue’s needs. During cleaning, she runs the fan at its highest setting, ensuring dust and particles are quickly filtered out. For everyday operation, she adjusts the fan to levels 2 or 3, which run quietly enough not to disturb the kittens at night. Looking ahead For Mellissa, clean air ensures a brighter future for Tiny but Mighty Kitten Rescue. She intends to continue providing even more kittens with a safe haven before transitioning to loving homes. The cleaner air and lack of odor in the rescue has already improved adoption visits, a critical step in finding forever homes for the kittens. Mellissa emphasizes her desire to address the root cause of ownerless kittens—unspayed and neutered animals in the population. She hopes to get the word out to more pet owners about the crucial role of spaying and neutering their animals. As she warns, “the cat overpopulation is so crazy here. Spay and neuter your cats, spay and neuter your dogs to help lower those populations.” Conclusion Tiny but Mighty Kitten Rescue’s story underscores the profound difference clean air technology can make in transforming lives—both human and animal. For Mellissa, investing in air purification wasn’t just about solving a nuisance; it was about creating a healthier, more inviting space where kittens could thrive and visitors could feel comfortable. By addressing the often-overlooked issue of air quality, she has set a powerful example for other rescues, shelters, and even individual pet owners facing similar challenges.","

Nestled in a small town near Cornwall, Canada, Tiny but Mighty Kitten Rescue serves as a lifeline for abandoned and vulnerable kittens (1). For nearly eight years, rescue founder Mellissa has worked tirelessly to save and nurture the most fragile feline lives in the region.

Yet despite Mellissa’s dedication to maintaining a clean environment for those in her care, animal rescues must always contend with a formidable health challenge. Poor air quality impacts both kittens and the humans who care for them.

Thanks to advanced air purification technology, the rescue now breathes easier—literally and figuratively.

Mission built on compassion

Mellissa’s journey to creating Tiny but Mighty began with heartbreak. As a volunteer at her local animal shelter, she learned of the euthanasia of kittens deemed too young to care for. Unwilling to accept this outcome, she founded her own kitten-focused rescue in 2017.

“I had so many dreams about saving these kittens. Something told me to just do it myself—start my own rescue.”

“I had so many dreams about saving these kittens. They wouldn’t let up,” Mellissa shared. “Something told me to just do it myself—start my own rescue.”

Mellissa provides a safe space for kittens to grow and thrive until they find their carefully screened forever homes. Today, the rescue operates solely on donations and community support. “It’s such an incredible community. People do come through to support what I’m doing, so it’s incredible.”

But running a rescue isn’t without its challenges, and one significant one she uncovered was air quality.

Nova the kitten enjoying toys at the Tiny but Mighty Kitten Rescue.

Good air quality: Essential in animal rescues

Caring for kittens in any enclosed environment presents unique challenges. Despite her meticulous cleaning habits, Mellissa found air quality to be a problem.

“The dust is crazy. The kittens will go in their litter box and sneeze.”

There would still be dust, odors, and allergens in the space “even though I use 99% dust-free litter.” Mellissa explained. “It’s great compared to some I’ve tried, but the dust is crazy. The kittens will go in their litter box and make little sneezes.”

This poor air quality not only affected visitors but also had potential health implications for the kittens and Mellissa herself. Dust mites, microscopic creatures that feed on animal’s dead skin, can cause year-round allergic reactions in both cats and humans, including sneezing, runny and itchy noses, watery eyes, and even rashes.

Components of pet dander can also act as an allergen, triggering similar reactions.

Determined to find a solution to her dust problem, she began her search for an air purifier that could meet the rescue’s unique needs.

Life changing air cleaning solution

Determined to tackle the persistent dust and allergens, Mellissa sought an air purifier that could truly meet the unique demands of her rescue. After years of frustration with a previous model, she knew she needed a solution that could handle constant activity, fine dust particles, and odors effectively.

Mellissa recalled, “The dust was still spreading throughout the house, and I thought, ‘this is just not enough.’”

That’s when Mellissa’s father suggested looking into IQAir’s HealthPro Plus XE. Intrigued by its reputation for advanced filtration capabilities, Mellissa decided to give it a try—and the results were immediate and noticeable.

The HealthPro Plus XE is equipped with HyperHEPA filtration, capable of capturing particles as small as 0.003 microns—100 times smaller than most air purifiers can filter. This efficiency, proven to remove particles far smaller than bacteria or viruses, combined with gas-phase filtration to eliminate odors, made it an ideal solution for the rescue’s air quality challenges.

“The kittens aren’t sneezing anymore. The air purifier has had a huge impact,” Mellissa shared.

$\"\"$

The HealthPro Plus XE at work next to Leia the cat.

Not only did she see a dramatic improvement in the air quality for the kittens, but visitors also noticed the difference. The previously lingering food and litter odors were gone. “I definitely don’t smell that anymore,” Mellissa said. “I’m really impressed.”

“The kittens aren’t sneezing anymore. The air purifier has had a huge impact.”

When it comes to daily use, Mellissa has found a setup that works perfectly for the rescue’s needs. During cleaning, she runs the fan at its highest setting, ensuring dust and particles are quickly filtered out. For everyday operation, she adjusts the fan to levels 2 or 3, which run quietly enough not to disturb the kittens at night.

Looking ahead

For Mellissa, clean air ensures a brighter future for Tiny but Mighty Kitten Rescue. She intends to continue providing even more kittens with a safe haven before transitioning to loving homes.

The cleaner air and lack of odor in the rescue has already improved adoption visits, a critical step in finding forever homes for the kittens.

Mellissa emphasizes her desire to address the root cause of ownerless kittens—unspayed and neutered animals in the population. She hopes to get the word out to more pet owners about the crucial role of spaying and neutering their animals. As she warns, “the cat overpopulation is so crazy here. Spay and neuter your cats, spay and neuter your dogs to help lower those populations.”

Conclusion

Tiny but Mighty Kitten Rescue’s story underscores the profound difference clean air technology can make in transforming lives—both human and animal.

For Mellissa, investing in air purification wasn’t just about solving a nuisance; it was about creating a healthier, more inviting space where kittens could thrive and visitors could feel comfortable. By addressing the often-overlooked issue of air quality, she has set a powerful example for other rescues, shelters, and even individual pet owners facing similar challenges.

","cleaner-air-healthier-kittens-iqair-supports-tiny-but-mighty-rescue","gid://shopify/Article/634971062350","https://shop.iqair.cn/en/blogs/news/cleaner-air-healthier-kittens-iqair-supports-tiny-but-mighty-rescue","2025-01-27T13:00:00Z",[1600,890],"Pets","Cleaner air, healthier kittens: Tiny but Mighty Kitten Rescue",{"_10":1603,"_202":1604,"_205":1605,"_207":1190,"_203":1191},"gid://shopify/ArticleImage/269919354958","Cat resting next to air purifier.","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/KittenRescue_Desk_b3d57834-7858-4bac-b89f-c734afea302e.jpg?v=1755513318","geoSpotlight",{"_1608":1609,"_1610":1611},"spotlightItems",[],"meta",{"_1612":1613,"_1614":1615,"_1616":1617,"_1618":1619,"_1623":118},"bbox","-3.144089,-3.165301,3.144089,3.165301","zoomLevel",10,"radiusKm",350,"location",{"_1620":1621,"_1068":118,"_1622":118},"source","cloudfront","lon","markerCount","actionData","errors"]

Featured articles

Trending topics

Revealing the Invisible: Campus air quality monitoring in Cameroon

Should you leave an air purifier on all day?

Air sensors: A powerful tool for change

What is a HyperHEPA air purifier?

One planet, one climate system: Transboundary pollution requires collective action

How three major studies changed what we know about air pollution

Greenhouse Gases

How often should you change an air purifier filter?

Do air purifiers remove viruses and bacteria from the air?

How air pollution affects sleep quality

2024 IQAir World Air Quality Report

Connect With IQAir

Follow Us

Consult with a Product Specialist