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Understanding the \"Unhealthy for Sensitive Groups\" AQI Range

An Air Quality Index (AQI) between 101-150 is deemed \"Unhealthy for Sensitive Groups.\" Sensitive groups include:

Children
The Elderly
Pregnant People
People with cardiac and pulmonary diseases

\n\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

HEALTH RECOMMENDATIONS
How to protect from Unhealthy for Sensitive Groups pollution
\n \n $\"Mask$ \n Wear a mask outdoors and indoors GET A MASK\n \n \n	\n \n $\"Air$ \n Run an air purifier GET AN AIR PURIFIER\n \n \n
\n \n $\"Monitor$ \n Close your windows to avoid dirty outdoor air GET A MONITOR\n \n \n	\n \n $\"Exercise$ \n Reduce outdoor exercise \n \n

Protective Measures for Sensitive Groups

When air quality is unhealthy for sensitive groups, everyone is at risk for eye, skin, and throat irritation, as well as respiratory problems. The public should greatly reduce outdoor exertion.

While the broader population might still be largely unaffected, sensitive groups are at much greater health risk and should be very cautious. They should avoid all outdoor activity.

How can I protect myself when air quality is unhealthy for sensitive groups?

Get a free air quality app for real-time air quality alerts and forecasts and consistently monitor your air quality.
Help increase the amount of ground-level monitors by becoming an air quality contributor. Contribute to your community’s outdoor air quality data.
Shut doors and windows and set the HVAC to recirculate mode.
Sensitive groups should stay indoors; if you do need to go outdoors, wear a KN95/FFP2 mask.
Run a high-performance air purifier to filter pollutants, particles, gases, and other contaminants

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High-performance, comfortable mask with tight seal for better protection.

IQAir Mask redefines what wearing a protective KN95/FFP2 mask should feel like. Engineered to not only provide superior reduction for a wide range of airborne pollutants, but also designed to provide the most comfortable wearing experience ever. Valveless, medical-grade, all-day protection KN95-certified air pollution mask filters 95% of particles down to 0.3 microns, PM2.5, PM1, PM10, and other common particulates.

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See the map and health recommendations.","thumbnail","https://www.iqair.com/dl/app/notifications/Notification_Daily_AQI_Face_03_Orange@3x.png",-83.2056851,42.2047072,{"_98":515,"_79":569,"_11":570,"_69":571,"_519":572,"_71":573,"_73":574,"_63":575,"_50":576,"_525":577,"_111":-5,"_75":578,"_77":579,"_67":580,"_81":581},{"_98":515,"_79":553,"_11":554,"_69":555,"_519":556,"_71":557,"_73":558,"_63":559,"_50":560,"_525":561,"_111":-5,"_75":562,"_77":563,"_67":564,"_81":565},{"_98":515,"_79":537,"_11":538,"_69":539,"_519":540,"_71":541,"_73":542,"_63":543,"_50":544,"_525":545,"_111":-5,"_75":546,"_77":547,"_67":548,"_81":549},{"_98":515,"_79":516,"_11":517,"_69":518,"_519":520,"_71":521,"_73":522,"_63":523,"_50":524,"_525":526,"_111":-5,"_75":527,"_77":528,"_67":529,"_81":530},"Article",{"_52":502},{"_63":61},"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.","excerptHtml","

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","onlineStoreUrl","https://shop.iqair.cn/en/blogs/news/permian-health-air-quality-crusade-in-gambia","2025-03-24T17:00:00Z",[534,535,536],"Revealing the Invisible: Permian Health’s Air Quality Crusade in Gambia",{"_50":531,"_212":532,"_210":533,"_213":500,"_215":501},"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","Community","Featured Contributor","Success Stories",{"_52":502},{"_63":61},"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",[534,535,536],"Revealing the Invisible: WWF-Pakistan’s mission for clean air",{"_50":550,"_212":551,"_210":552,"_213":500,"_215":501},"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",{"_52":502},{"_63":61},"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",[535,536],"Revealing the Invisible: Boosting air quality awareness in Kenya",{"_50":566,"_212":567,"_210":568,"_213":500,"_215":501},"gid://shopify/ArticleImage/273486184526","Nairobi-city-smog","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/AQL_Revamp_Kenya_Clean_Air_Desktop_cd749b43-0150-45f4-a731-3aaad86eb4f3.jpg?v=1779905052",{"_52":502},{"_63":61},"A Detroit childcare center is prioritizing clean air technology in early childhood education. Discover how air quality awareness is changing lives and influencing the next generation.","

A Detroit childcare center is prioritizing clean air technology in early childhood education. Discover how air quality awareness is changing lives and influencing the next generation.

","Air quality awareness and clean air environments are all too often a second thought within busy classrooms, where immediate challenges and childcare obstacles take over. However, in Detroit, Michigan, an early education center is reshaping their air quality concerns and the well-being of their students. Founded by Sentra Johnson-Smith, Sent Loves the Kids Development Center has meshed early education with air quality awareness and data collection through the installation of clean air technology. In partnership with IQAir and the Clean Air for Kids initiative, the Michigan childcare center is leading the charge in bringing pollution awareness through air quality monitoring and filtration to the early childhood education space. Children need clean, safe learning environments Sent Loves the Kids was born from Johnson-Smith's natural connection to children and her desire to holistically shape their early developmental stages. She aims to provide foundational education alongside physical and mental well-being for her students through comprehensive childcare and community connections (1). “Sent Loves The Kids was founded out of my deep love for children and my strong desire to be part of their educational journey,” said Johnson-Smith. “My goal is to nurture and educate the whole child—mind, body, and soul.” In Detroit and other large populous cities alike, these childcare facilities face unique environmental challenges. From urban air pollution to possible lead exposure in water supplies, harmful pollutants can go undetected and sneak into indoor spaces from outside environments. Especially in fast-paced childcare settings, air pollution and environmental concerns can go unnoticed or overshadowed by immediate demands. “Before receiving [an] air monitor, air quality wasn’t on my mind,” Johnson-Smith admitted. “When managing the day-to-day demands of running a facility, air quality was at the bottom of the list.” However, after partnering with IQAir and receiving air quality technology, Johnson-Smith has created a clean air environment for her students and reformed early education learning to encompass air quality awareness. Clean air environments in educational spaces Safe environments and clean air quality are essential to providing a productive learning space for students to thrive in. For children with asthma or allergies, air quality is a daily concern. By employing the Atem X air purifier, the Sent Loves the Kids facility can actively airborne pollutants and produce clean air for students to feel comfortable and safe. “By monitoring the air quality more closely, we can take immediate action when needed, such as adjusting indoor activities or ensuring that children with respiratory conditions are not exposed to triggers,” Johnson-Smith said. Multiple studies have shown children and infants to be among the most vulnerable populations affected by poor air quality. Childhood exposure to long-term air pollution can lead to harmful chronic impacts related to lung development, respiratory health, and asthma (2)(3). However, the utilization of air purifiers and air cleaning tools can drastically lower these risks and improve symptoms. With support from IQAir and the Clean Air for Kids Initiative, Sent Loves the Kids now provides a safe environment for teachers, students, and faculty alike through clean air technology and monitoring. Early education meets air quality awareness With access to real-time air quality monitors that detail various air pollutants and air quality levels, what once was invisible has become impossible to ignore for the Sent Loves the Kids facility. Data collection and air quality monitoring has allowed Johnson-Smith to build safeguards around child healthcare and create immersive lesson plans surrounding local air quality environments. Sent Loves the Kids takes air quality awareness a step further, teaching the next generation about environmental impact and air quality safety. According to Johnson-Smith, “incorporating air quality awareness into our educational programming not only aligns with our mission to provide a nurturing and safe environment but also helps children understand the importance of caring for their health and the planet.” After setting up the AirVisual Pro Indoor Monitor, Johnson-Smith noticed more air quality events and pollutant concerns, modifying school schedules and activities to maintain a safe environment for children and faculty alike. With the combination of clean air filtration and monitoring, Sent Loves the Kids has become a safe breathing and learning environment for students and teachers alike. Conclusion Sent Loves the Kids proves that meaningful childcare changes doesn’t require a large facility or financial burdens. Through air quality monitoring, filtration, and environmental education, Johnson-Smith is laying the groundwork for the next generation to breathe easier and healthier. With the support of IQAir science-backed air quality technology and a passionate mission, any childcare provider or community facility can make an impactful difference in lives of children, families, and the broader local community.","

Air quality awareness and clean air environments are all too often a second thought within busy classrooms, where immediate challenges and childcare obstacles take over. However, in Detroit, Michigan, an early education center is reshaping their air quality concerns and the well-being of their students.

Founded by Sentra Johnson-Smith, Sent Loves the Kids Development Center has meshed early education with air quality awareness and data collection through the installation of clean air technology. In partnership with IQAir and the Clean Air for Kids initiative, the Michigan childcare center is leading the charge in bringing pollution awareness through air quality monitoring and filtration to the early childhood education space.

Children need clean, safe learning environments

Sent Loves the Kids was born from Johnson-Smith's natural connection to children and her desire to holistically shape their early developmental stages. She aims to provide foundational education alongside physical and mental well-being for her students through comprehensive childcare and community connections (1).

“Sent Loves The Kids was founded out of my deep love for children and my strong desire to be part of their educational journey,” said Johnson-Smith. “My goal is to nurture and educate the whole child—mind, body, and soul.”

In Detroit and other large populous cities alike, these childcare facilities face unique environmental challenges. From urban air pollution to possible lead exposure in water supplies, harmful pollutants can go undetected and sneak into indoor spaces from outside environments. Especially in fast-paced childcare settings, air pollution and environmental concerns can go unnoticed or overshadowed by immediate demands.

“Before receiving [an] air monitor, air quality wasn’t on my mind,” Johnson-Smith admitted. “When managing the day-to-day demands of running a facility, air quality was at the bottom of the list.”

However, after partnering with IQAir and receiving air quality technology, Johnson-Smith has created a clean air environment for her students and reformed early education learning to encompass air quality awareness.

Clean air environments in educational spaces

Safe environments and clean air quality are essential to providing a productive learning space for students to thrive in. For children with asthma or allergies, air quality is a daily concern. By employing the Atem X air purifier, the Sent Loves the Kids facility can actively airborne pollutants and produce clean air for students to feel comfortable and safe.

“By monitoring the air quality more closely, we can take immediate action when needed, such as adjusting indoor activities or ensuring that children with respiratory conditions are not exposed to triggers,” Johnson-Smith said.

Multiple studies have shown children and infants to be among the most vulnerable populations affected by poor air quality. Childhood exposure to long-term air pollution can lead to harmful chronic impacts related to lung development, respiratory health, and asthma (2)(3). However, the utilization of air purifiers and air cleaning tools can drastically lower these risks and improve symptoms.

With support from IQAir and the Clean Air for Kids Initiative, Sent Loves the Kids now provides a safe environment for teachers, students, and faculty alike through clean air technology and monitoring.

Early education meets air quality awareness

With access to real-time air quality monitors that detail various air pollutants and air quality levels, what once was invisible has become impossible to ignore for the Sent Loves the Kids facility.

Data collection and air quality monitoring has allowed Johnson-Smith to build safeguards around child healthcare and create immersive lesson plans surrounding local air quality environments. Sent Loves the Kids takes air quality awareness a step further, teaching the next generation about environmental impact and air quality safety.

According to Johnson-Smith, “incorporating air quality awareness into our educational programming not only aligns with our mission to provide a nurturing and safe environment but also helps children understand the importance of caring for their health and the planet.”

After setting up the AirVisual Pro Indoor Monitor, Johnson-Smith noticed more air quality events and pollutant concerns, modifying school schedules and activities to maintain a safe environment for children and faculty alike. With the combination of clean air filtration and monitoring, Sent Loves the Kids has become a safe breathing and learning environment for students and teachers alike.

Conclusion

Sent Loves the Kids proves that meaningful childcare changes doesn’t require a large facility or financial burdens. Through air quality monitoring, filtration, and environmental education, Johnson-Smith is laying the groundwork for the next generation to breathe easier and healthier.

With the support of IQAir science-backed air quality technology and a passionate mission, any childcare provider or community facility can make an impactful difference in lives of children, families, and the broader local community.

","detroit-childcare-center-embraces-clean-air","gid://shopify/Article/641902870606","https://shop.iqair.cn/en/blogs/news/detroit-childcare-center-embraces-clean-air","2026-07-20T17:10:02Z",[534,536],"Detroit childcare center achieves clean air and data monitoring awareness",{"_50":582,"_212":-5,"_210":583,"_213":584,"_215":585},"gid://shopify/ArticleImage/274616647758","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/A_53a90991-5f39-4284-a91b-6473a61b97bb.jpg?v=1786554677",839,674,{"_98":515,"_79":638,"_11":639,"_69":640,"_519":640,"_71":641,"_73":642,"_63":643,"_50":644,"_525":645,"_111":-5,"_75":646,"_77":647,"_67":648,"_81":649},{"_98":515,"_79":622,"_11":623,"_69":624,"_519":624,"_71":625,"_73":626,"_63":627,"_50":628,"_525":629,"_111":-5,"_75":630,"_77":631,"_67":632,"_81":633},{"_98":515,"_79":607,"_11":608,"_69":609,"_519":609,"_71":610,"_73":611,"_63":612,"_50":613,"_525":614,"_111":-5,"_75":615,"_77":616,"_67":617,"_81":618},{"_98":515,"_79":590,"_11":591,"_69":592,"_519":592,"_71":593,"_73":594,"_63":595,"_50":596,"_525":597,"_111":-5,"_75":598,"_77":599,"_67":600,"_81":601},{"_52":502},{"_63":61},"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",[605,606],"The hidden dangers of scented candles",{"_50":602,"_212":603,"_210":604,"_213":500,"_215":501},"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","Health and Wellness","Popular articles",{"_52":502},{"_63":61},"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",[503,605,606],"Himalayan salt lamps: Worth their salt?",{"_50":619,"_212":620,"_210":621,"_213":500,"_215":501},"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",{"_52":502},{"_63":61},"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",[637,605,606],"Do air purifiers work? Air purifier myths and facts debunked",{"_50":634,"_212":635,"_210":636,"_213":500,"_215":501},"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","Air Cleaning Technology",{"_52":502},{"_63":61},"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.

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

\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",[503,653,606,504],"How to protect yourself from wildfire smoke",{"_50":650,"_212":651,"_210":652,"_213":500,"_215":501},"gid://shopify/ArticleImage/273488543822","Wildfire at night in hills","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/AQL_21_WildfireDesktop_a_a8a07ca3-c3c0-4315-854e-f2a5aa9b0f22.jpg?v=1779917272","Climate",{"_98":515,"_79":740,"_11":741,"_69":742,"_519":743,"_71":744,"_73":745,"_63":746,"_50":747,"_525":748,"_111":-5,"_75":749,"_77":750,"_67":751,"_81":752},{"_98":515,"_79":724,"_11":725,"_69":726,"_519":727,"_71":728,"_73":729,"_63":730,"_50":731,"_525":732,"_111":-5,"_75":733,"_77":734,"_67":735,"_81":736},{"_98":515,"_79":708,"_11":709,"_69":710,"_519":711,"_71":712,"_73":713,"_63":714,"_50":715,"_525":716,"_111":-5,"_75":717,"_77":718,"_67":719,"_81":720},{"_98":515,"_79":692,"_11":693,"_69":694,"_519":695,"_71":696,"_73":697,"_63":698,"_50":699,"_525":700,"_111":-5,"_75":701,"_77":702,"_67":703,"_81":704},{"_98":515,"_79":676,"_11":677,"_69":678,"_519":679,"_71":680,"_73":681,"_63":682,"_50":683,"_525":684,"_111":-5,"_75":685,"_77":686,"_67":687,"_81":688},{"_98":515,"_79":660,"_11":661,"_69":662,"_519":663,"_71":664,"_73":665,"_63":666,"_50":667,"_525":668,"_111":-5,"_75":669,"_77":670,"_67":671,"_81":672},{"_52":502},{"_63":61},"Indonesia’s worst fire season in 11 years is driving hazardous haze across major cities and neighboring countries. Learn more about the affected regions, causes, and when conditions may improve.","

Indonesia’s worst fire season in 11 years is driving hazardous haze across major cities and neighboring countries. Learn more about the affected regions, causes, and when conditions may improve.

","Is the air quality good in Indonesia? As of October 28, 2026, air quality across Indonesia remains poor, with major cities experiencing air quality in the \"unhealthy\" range and high PM2.5 concentrations from transboundary wildfire smoke, posing serious health risks to residents, especially children and the elderly. By 2:30 PM (Indonesia Time, GMT+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 poor, Indonesia's annual PM2.5 concentration in 2025 was 30 µg/m³, equivalent to an AQI of 90, classified as \"moderate\" and 6 times the WHO annual guideline of 5 µg/m³, placing Indonesia 17th globally in the 2025 World Air Quality Report. Air quality map of Indonesia and neighboring countries, as of 2:30 PM (local time) on October 28, 2026. Source: IQAir. Which cities are affected by bad air quality in Indonesia? As of October 28, 2026, the following cities across Indonesia are experiencing poor air quality: Bandung Jakarta Semarang South Tangerang Tangerang Air quality conditions can change throughout the day. For a complete, real-time overview of pollution levels nationwide, see Indonesia's air quality map. Jakarta ranked among the world's most polluted major cities as of 2:30 PM (local time) on October 28, 2026. Source: IQAir. When will the air quality improve in Indonesia? Indonesia experiences wildfires regularly during its dry season, but this year the blazes have been especially severe because a strong El Niño has brought drought, with researchers noting that air quality impacts have been very severe and persistent, and several weeks of fire season still remain (1). Meaningful improvement depends on the onset of the northeast monsoon season, expected in late October to November, which will bring more sustained rainfall that dampens active fire fronts and clears smoke from the atmosphere. Lasting improvement requires stronger prevention, accountability for illegal burning, and protection of peatlands. What is causing poor air quality in Indonesia? Indonesia has the world's largest share of tropical peatland, accounting for about a third of the global total, and peatland fires burning slowly and mostly underground for extended periods are responsible for much of the dry-season haze that this year has affected air quality as far away as Malaysia, Singapore, and the Philippines (2). Environmentalists blame inadequate preparedness and decades of forest-clearing permits and peatland drainage for the scale of this year's crisis, with parts of Indonesia experiencing hazardous air quality and thick haze turning skies in Central Kalimantan to apocalyptic shades of yellow and orange (3). Beyond seasonal fires, Indonesia's chronic urban air pollution is driven by coal-fired power stations, industrial activity, vehicle emissions, construction dust, road dust, and unregulated agricultural burning, with over 57% of Jakarta's population reported to suffer from respiratory problems directly linked to air pollution (4). 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 Indonesia?

As of October 28, 2026, air quality across Indonesia remains poor, with major cities experiencing air quality in the \"unhealthy\" range and high PM2.5 concentrations from transboundary wildfire smoke, posing serious health risks to residents, especially children and the elderly.

By 2:30 PM (Indonesia Time, GMT+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 poor, Indonesia's annual PM2.5 concentration in 2025 was 30 µg/m³, equivalent to an AQI of 90, classified as \"moderate\" and 6 times the WHO annual guideline of 5 µg/m³, placing Indonesia 17th globally in the 2025 World Air Quality Report.

$\"Air$ Air quality map of Indonesia and neighboring countries, as of 2:30 PM (local time) on October 28, 2026. Source: IQAir.

Which cities are affected by bad air quality in Indonesia?

As of October 28, 2026, the following cities across Indonesia are experiencing poor air quality:

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

$\"Jakarta$ Jakarta ranked among the world's most polluted major cities as of 2:30 PM (local time) on October 28, 2026. Source: IQAir.

When will the air quality improve in Indonesia?

Indonesia experiences wildfires regularly during its dry season, but this year the blazes have been especially severe because a strong El Niño has brought drought, with researchers noting that air quality impacts have been very severe and persistent, and several weeks of fire season still remain (1).

Meaningful improvement depends on the onset of the northeast monsoon season, expected in late October to November, which will bring more sustained rainfall that dampens active fire fronts and clears smoke from the atmosphere. Lasting improvement requires stronger prevention, accountability for illegal burning, and protection of peatlands.

What is causing poor air quality in Indonesia?

Indonesia has the world's largest share of tropical peatland, accounting for about a third of the global total, and peatland fires burning slowly and mostly underground for extended periods are responsible for much of the dry-season haze that this year has affected air quality as far away as Malaysia, Singapore, and the Philippines (2).

Environmentalists blame inadequate preparedness and decades of forest-clearing permits and peatland drainage for the scale of this year's crisis, with parts of Indonesia experiencing hazardous air quality and thick haze turning skies in Central Kalimantan to apocalyptic shades of yellow and orange (3).

Beyond seasonal fires, Indonesia's chronic urban air pollution is driven by coal-fired power stations, industrial activity, vehicle emissions, construction dust, road dust, and unregulated agricultural burning, with over 57% of Jakarta's population reported to suffer from respiratory problems directly linked to air pollution (4).

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.

","indonesia-air-quality-alert","gid://shopify/Article/642574843982","https://shop.iqair.cn/en/blogs/news/indonesia-air-quality-alert","2026-10-28T07:46:26Z",[503,653,504],"Indonesia Air Quality Alert",{"_50":673,"_212":674,"_210":675,"_213":500,"_215":501},"gid://shopify/ArticleImage/275576750158","Aerial shot of buildings in haze.","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/JakartaDesktop_f9dadfda-7dee-4fbd-8ff5-e1bb7131d45f.jpg?v=1792564253",{"_52":502},{"_63":61},"Autumn fireworks can degrade air quality and elevate wildfire risks. Learn about the health impacts of fireworks and pollutant-free alternatives for celebrations.","

Autumn fireworks can degrade air quality and elevate wildfire risks. Learn about the health impacts of fireworks and pollutant-free alternatives for celebrations.

","Fireworks are a globally recognized form of celebration, yet they compromise regional air quality levels. Fireworks have historically increased airborne particulate matter levels by as much as 370% during the week of seasonal celebrations. While colorful displays can bring communities together, fireworks combustion can introduce microscopic airborne pollutants into surrounding environments, temporarily affecting outdoor air quality and creating potential breathing concerns for nearby communities. By understanding the global influence of fireworks and the pollutants they release, communities can take practical steps to reduce unnecessary exposure and support cleaner seasonal celebrations. When do fireworks occur in autumn? Fireworks are used around the world during festivals, holidays, cultural celebrations, and public events, with timing varying by country and local traditions. With bright lights and loud explosions, fireworks can be a popular choice among global autumnal celebrations. In India, fireworks are strongly associated with Diwali, the Hindu festival of lights, which falls in October or November depending on the year. Diwali celebrates the spiritual power of light over darkness and hope over despair through various light-based events and practices (1). In the United States, fireworks may continue into autumn around sporting events, fairs, and Halloween-related celebrations. Amusement parks and community festivals may also increase fireworks utilization during autumn for seasonal holidays. In South Korea, fireworks are commonly featured at autumn events such as the Busan Fireworks Festival, traditionally held in November. The event brings over a million viewers together on Gwangalli Beach for a fireworks show hosting 80,000 separate firecrackers (2). Because fireworks are frequently used in densely populated areas, large displays can temporarily increase particulate pollution and reduce local air quality. Combined with ongoing urbanization and wildfire risks in select regions, fireworks can lead to prolonged environmental effects and poor breathing conditions. Which airborne pollutants do fireworks release? When fireworks become airborne and combust, a mixture of fine particulate matter and gaseous chemical pollutants are released to create explosively bright light displays. From metal-based pollutants to particulate smoke, fireworks produce a wide range of airborne pollutants typically used in the color creation and visual effects process, including (3): Lead Strontium Copper Aluminum Sulfur dioxide Carbon monoxide PM2.5, particulate matter down to 2.5 microns in diameter PM10, particulate matter down to 10 microns in diameter Ultrafine particles can become suspended in outdoor air and may remain elevated even after a display ends, further prolonging pollutant exposures. Wind, temperature, humidity, and surrounding buildings can influence how long these pollutants remain concentrated. How fireworks impact personal health Close proximity to firework displays can cause both short-term symptoms and long-term medical conditions depending on exposure levels and ongoing regional air pollution. Temporary exposure to fireworks-related pollution can irritate the eyes, nose, throat, and respiratory system, particularly when individuals are close to large displays or when pollution accumulates in areas with limited ventilation. For individuals with pre-existing medical conditions, these symptoms can be exacerbated and cause further discomfort.However, if a region has high urban pollutant levels or wildfire risks, fireworks can lead to prolonged air quality events. During dry seasons or areas with autumnal leaves, firework sparks can ignite local wildfires, causing elevated smoke pollution and impacting local communities (4). Global influence of fireworks on air quality Abundant utilization of firework displays can influence poor air quality conditions, extending across counties and communities depending on the number of fireworks set off. In conjunction with pre-existing urban pollution, fireworks can impact airborne pollutant levels greatly. In India, a 2018 research study found a statistically significant spike in air pollution directly derived from fireworks combustion within Diwali celebrations (5). Combined with cultural crop burnings in autumn and industrial emissions, Diwali continues to bring high pollutant activity year after year, with “very poor” air quality conditions recorded throughout the country (6). In the United States, a 2015 research study determined an average pollutant activity increase of 42% directly following Fourth of July festivities (7). For sporting events and amusement parks, large firework displays can occur on a regular basis, causing continuous impact on air quality and airborne pollutants year-round. In South Korea, a 2025 research study observed 7-12 times the amount of ultrafine airborne pollutants that occurred directly after the Busan Fireworks Festival when compared to a controlled non-event day (8). With over a million individuals in attendance annually, air pollution exposure can be widespread and invade indoor environments. Fireworks have influential effects that can become exacerbated without proper treatment or air quality awareness. To reduce firework pollution, integrated purification and pollutant-free celebration practices can lead to pathways of clean air quality. Integrated firework resilience and reduction Communities can reduce the environmental effects of fireworks by combining public-event planning with air-quality monitoring, pollution-conscious regulations, and alternative celebration technologies. Real-time air-quality monitors allow event organizers to track particulate levels before, during, and after fireworks displays. Clean air areas built with ultrafine pollutant purification can also support locals attending autumnal festivities without the worry of firework pollution. HyperHEPA air purifiers are specifically designed to capture 99.5% of ultrafine pollutants down to 0.003 microns in size. Local governments can establish designated fireworks zones, regulate display sizes and timing, and use environmental criteria when approving large public events. For complete air quality reassurance, pollutant-free celebration methods alongside community regulations can ensure airborne pollutants are greatly minimized. Pollutant-free seasonal celebration methods Seasonal celebrations do not have to end in elevated pollutant activity. Communities can maintain the visual and cultural elements of seasonal celebrations while reducing dependence on conventional fireworks. From at-home festivities to large community events, environmentally-friendly celebration methods can include: Drone light shows Projection mapping Synchronized LED displays Lantern installations Neon banners Flag shows Cheerleading or dance routines Lower-emission or reduced-noise fireworks can also be beneficial for events where fireworks remain culturally important, although these alternatives should still be evaluated for their environmental effects. Households can celebrate more cleanly by attending organized displays instead of setting off large quantities of fireworks individually, reducing the amount of combustion occurring across residential neighborhoods. Personal protection from poor air Even if personal firework utilization is prevented, air quality may still worsen due to widespread fireworks activity nearby. During fireworks celebrations, pollution typically peak in the evening and can impact indoor and outdoor air quality. To reinforce health protection and pollutant reduction, personal clean air tactics can include: Use a free air quality app for real-time pollutant alerts and forecasts. Avoid outdoor activity during peak fireworks hours. Close doors and windows during firework activity and set HVAC systems to recirculate indoor air. Run a high-performance air purifier to filter particles, gases, and other pollutants. Conclusion Fireworks can bring communities together during autumn celebrations, but their combustion can also temporarily introduce particulate matter, metals, and gaseous pollutants into surrounding air. Through responsible event planning and pollutant-free celebration methods, festival traditions can continue while environmental and personal health protection remain a priority. During festival season, individuals and event organizers can support healthier breathing environments by limiting unnecessary exposure to fireworks smoke, improving public air-quality awareness, and considering lower-pollution alternatives.","

Fireworks are a globally recognized form of celebration, yet they compromise regional air quality levels. Fireworks have historically increased airborne particulate matter levels by as much as 370% during the week of seasonal celebrations.

While colorful displays can bring communities together, fireworks combustion can introduce microscopic airborne pollutants into surrounding environments, temporarily affecting outdoor air quality and creating potential breathing concerns for nearby communities.

By understanding the global influence of fireworks and the pollutants they release, communities can take practical steps to reduce unnecessary exposure and support cleaner seasonal celebrations.

When do fireworks occur in autumn?

Fireworks are used around the world during festivals, holidays, cultural celebrations, and public events, with timing varying by country and local traditions. With bright lights and loud explosions, fireworks can be a popular choice among global autumnal celebrations.

In India, fireworks are strongly associated with Diwali, the Hindu festival of lights, which falls in October or November depending on the year. Diwali celebrates the spiritual power of light over darkness and hope over despair through various light-based events and practices (1).

In the United States, fireworks may continue into autumn around sporting events, fairs, and Halloween-related celebrations. Amusement parks and community festivals may also increase fireworks utilization during autumn for seasonal holidays.

In South Korea, fireworks are commonly featured at autumn events such as the Busan Fireworks Festival, traditionally held in November. The event brings over a million viewers together on Gwangalli Beach for a fireworks show hosting 80,000 separate firecrackers (2).

Because fireworks are frequently used in densely populated areas, large displays can temporarily increase particulate pollution and reduce local air quality. Combined with ongoing urbanization and wildfire risks in select regions, fireworks can lead to prolonged environmental effects and poor breathing conditions.

Which airborne pollutants do fireworks release?

When fireworks become airborne and combust, a mixture of fine particulate matter and gaseous chemical pollutants are released to create explosively bright light displays. From metal-based pollutants to particulate smoke, fireworks produce a wide range of airborne pollutants typically used in the color creation and visual effects process, including (3):

Lead
Strontium
Copper
Aluminum
Sulfur dioxide
Carbon monoxide
\nPM2.5, particulate matter down to 2.5 microns in diameter
\nPM10, particulate matter down to 10 microns in diameter

Ultrafine particles can become suspended in outdoor air and may remain elevated even after a display ends, further prolonging pollutant exposures. Wind, temperature, humidity, and surrounding buildings can influence how long these pollutants remain concentrated.

How fireworks impact personal health

Close proximity to firework displays can cause both short-term symptoms and long-term medical conditions depending on exposure levels and ongoing regional air pollution.

Temporary exposure to fireworks-related pollution can irritate the eyes, nose, throat, and respiratory system, particularly when individuals are close to large displays or when pollution accumulates in areas with limited ventilation. For individuals with pre-existing medical conditions, these symptoms can be exacerbated and cause further discomfort.

However, if a region has high urban pollutant levels or wildfire risks, fireworks can lead to prolonged air quality events. During dry seasons or areas with autumnal leaves, firework sparks can ignite local wildfires, causing elevated smoke pollution and impacting local communities (4).

Global influence of fireworks on air quality

Abundant utilization of firework displays can influence poor air quality conditions, extending across counties and communities depending on the number of fireworks set off. In conjunction with pre-existing urban pollution, fireworks can impact airborne pollutant levels greatly.

In India, a 2018 research study found a statistically significant spike in air pollution directly derived from fireworks combustion within Diwali celebrations (5). Combined with cultural crop burnings in autumn and industrial emissions, Diwali continues to bring high pollutant activity year after year, with “very poor” air quality conditions recorded throughout the country (6).

In the United States, a 2015 research study determined an average pollutant activity increase of 42% directly following Fourth of July festivities (7). For sporting events and amusement parks, large firework displays can occur on a regular basis, causing continuous impact on air quality and airborne pollutants year-round.

In South Korea, a 2025 research study observed 7-12 times the amount of ultrafine airborne pollutants that occurred directly after the Busan Fireworks Festival when compared to a controlled non-event day (8). With over a million individuals in attendance annually, air pollution exposure can be widespread and invade indoor environments.

Fireworks have influential effects that can become exacerbated without proper treatment or air quality awareness. To reduce firework pollution, integrated purification and pollutant-free celebration practices can lead to pathways of clean air quality.

Integrated firework resilience and reduction

Communities can reduce the environmental effects of fireworks by combining public-event planning with air-quality monitoring, pollution-conscious regulations, and alternative celebration technologies.

Real-time air-quality monitors allow event organizers to track particulate levels before, during, and after fireworks displays. Clean air areas built with ultrafine pollutant purification can also support locals attending autumnal festivities without the worry of firework pollution. HyperHEPA air purifiers are specifically designed to capture 99.5% of ultrafine pollutants down to 0.003 microns in size.

Local governments can establish designated fireworks zones, regulate display sizes and timing, and use environmental criteria when approving large public events. For complete air quality reassurance, pollutant-free celebration methods alongside community regulations can ensure airborne pollutants are greatly minimized.

Pollutant-free seasonal celebration methods

Seasonal celebrations do not have to end in elevated pollutant activity. Communities can maintain the visual and cultural elements of seasonal celebrations while reducing dependence on conventional fireworks. From at-home festivities to large community events, environmentally-friendly celebration methods can include:

Drone light shows
Projection mapping
Synchronized LED displays
Lantern installations
Neon banners
Flag shows
Cheerleading or dance routines

Lower-emission or reduced-noise fireworks can also be beneficial for events where fireworks remain culturally important, although these alternatives should still be evaluated for their environmental effects. Households can celebrate more cleanly by attending organized displays instead of setting off large quantities of fireworks individually, reducing the amount of combustion occurring across residential neighborhoods.

Personal protection from poor air

Even if personal firework utilization is prevented, air quality may still worsen due to widespread fireworks activity nearby. During fireworks celebrations, pollution typically peak in the evening and can impact indoor and outdoor air quality. To reinforce health protection and pollutant reduction, personal clean air tactics can include:

\nUse a free air quality app for real-time pollutant alerts and forecasts.
Avoid outdoor activity during peak fireworks hours.
Close doors and windows during firework activity and set HVAC systems to recirculate indoor air.
\nRun a high-performance air purifier to filter particles, gases, and other pollutants.
\n

Conclusion

Fireworks can bring communities together during autumn celebrations, but their combustion can also temporarily introduce particulate matter, metals, and gaseous pollutants into surrounding air.

Through responsible event planning and pollutant-free celebration methods, festival traditions can continue while environmental and personal health protection remain a priority.

During festival season, individuals and event organizers can support healthier breathing environments by limiting unnecessary exposure to fireworks smoke, improving public air-quality awareness, and considering lower-pollution alternatives.

","seasonal-fireworks-influence-international-air-quality","gid://shopify/Article/642578546766","https://shop.iqair.cn/en/blogs/news/seasonal-fireworks-influence-international-air-quality","2026-10-28T15:00:04Z",[637,503,14,504],"Seasonal fireworks influence international air quality",{"_50":689,"_212":690,"_210":691,"_213":584,"_215":585},"gid://shopify/ArticleImage/275580649550","Busan Fireworks Festival","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/Article_SeasonalFireworksBreathingEasier_Desk.jpg?v=1792610141",{"_52":502},{"_63":61},"Almaty faces poor air quality as the heating season begins. Find out more about Almaty's air quality.","

Almaty faces poor air quality as the heating season begins. Find out more about Almaty's air quality.

","Is the air quality good in Almaty? On October 28, 2026, at 8 PM (local time), Almaty, Kazakhstan, is experiencing poor air quality due to vehicle emissions and coal burning. The AQI is 164, classified as \"unhealthy,\" with PM2.5 concentrations dominating (1). These conditions may increase the risk of respiratory issues, worsen heart problems, and impair lung function, particularly for children, the elderly, and people with underlying health conditions. To stay safe during this temporary spike, limit outdoor time, seal windows, wear masks if venturing out, and use air purifiers indoors. Air quality is dynamic and can change rapidly. Almaty ranked as the 5th most polluted major city in the world on Wednesday evening (local time). Click here for a real-time air quality map of Almaty. While the air quality conditions today are unusually poor, it is important to keep in mind that the average PM2.5 concentration in 2025 for Almaty was 22.8 µg/m³. This corresponds to an AQI of 73, which falls into the “moderate” category and was ~4.5 times the WHO annual guideline of 5 µg/m³. Almaty, Kazakhstan ranked as the 5th most polluted major city on October 28, 2026 at 8 PM (local time). Source: IQAir. When will air quality improve in Almaty? Air quality is forecast to improve to the moderate range by tomorrow. The timing and extent of improvement may change with weather conditions. Hourly air quality forecast for Almaty, Kazakhstan on October 28, 2026 Source: IQAir. Pollution can return during the heating season. Research using Almaty data from 2020 through 2024 found pronounced winter pollution peaks associated with heating emissions, temperature inversions, and weaker winds (2). In a 2026 Almaty Air Initiative survey, 81% of respondents considered the city's air quality hazardous to health. Lasting improvement depends on reducing emissions. CHP-2 is being converted to natural gas, but coal-fired equipment is expected to operate alongside gas units during 2027–2029, delaying the full emissions reductions (3). Air quality map of Almaty, Kazakhstan on October 28, 2026. Source: IQAir. What is causing poor air quality in Almaty? Almaty's pollution is driven by heating and transportation emissions, compounded by conditions that limit their dispersal (4). Coal combustion in power plants and household stoves produces particle pollution, especially during colder months. Vehicle exhaust contributes particles and gases, including nitrogen dioxide and carbon monoxide. Weak winds, surrounding mountains, and temperature inversions restrict air circulation. During inversions, warmer air above the surface traps cooler, polluted air near the ground. 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 Almaty?

On October 28, 2026, at 8 PM (local time), Almaty, Kazakhstan, is experiencing poor air quality due to vehicle emissions and coal burning. The AQI is 164, classified as \"unhealthy,\" with PM2.5 concentrations dominating (1).

These conditions may increase the risk of respiratory issues, worsen heart problems, and impair lung function, particularly for children, the elderly, and people with underlying health conditions. To stay safe during this temporary spike, limit outdoor time, seal windows, wear masks if venturing out, and use air purifiers indoors.

Air quality is dynamic and can change rapidly. Almaty ranked as the 5th most polluted major city in the world on Wednesday evening (local time).

Click here for a real-time air quality map of Almaty.

While the air quality conditions today are unusually poor, it is important to keep in mind that the average PM2.5 concentration in 2025 for Almaty was 22.8 µg/m³. This corresponds to an AQI of 73, which falls into the “moderate” category and was ~4.5 times the WHO annual guideline of 5 µg/m³.

$\"\"$ Almaty, Kazakhstan ranked as the 5th most polluted major city on October 28, 2026 at 8 PM (local time). Source: IQAir.

When will air quality improve in Almaty?

Air quality is forecast to improve to the moderate range by tomorrow. The timing and extent of improvement may change with weather conditions.

$\"\"$ Hourly air quality forecast for Almaty, Kazakhstan on October 28, 2026 Source: IQAir.

Pollution can return during the heating season. Research using Almaty data from 2020 through 2024 found pronounced winter pollution peaks associated with heating emissions, temperature inversions, and weaker winds (2).

In a 2026 Almaty Air Initiative survey, 81% of respondents considered the city's air quality hazardous to health.

Lasting improvement depends on reducing emissions. CHP-2 is being converted to natural gas, but coal-fired equipment is expected to operate alongside gas units during 2027–2029, delaying the full emissions reductions (3).

$\"\"$ Air quality map of Almaty, Kazakhstan on October 28, 2026. Source: IQAir.

What is causing poor air quality in Almaty?

Almaty's pollution is driven by heating and transportation emissions, compounded by conditions that limit their dispersal (4).

Coal combustion in power plants and household stoves produces particle pollution, especially during colder months.
Vehicle exhaust contributes particles and gases, including nitrogen dioxide and carbon monoxide.
Weak winds, surrounding mountains, and temperature inversions restrict air circulation. During inversions, warmer air above the surface traps cooler, polluted air near the ground.

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.
\nContribute to your community’s outdoor air quality data.
\n
Stay indoors when air quality is poor; if you do need to go outdoors, wear a KN95/FFP2 mask.
\n
\nRun a high-performance air purifier to filter particles, gases, and other pollutants.
\n

","almaty-among-top-10-most-polluted-cities-in-the-world-10-28-2026","gid://shopify/Article/642620358734","https://shop.iqair.cn/en/blogs/news/almaty-among-top-10-most-polluted-cities-in-the-world-10-28-2026","2026-10-28T15:53:11Z",[503,653],"October 28, 2026: Almaty among top 10 most polluted cities in the world",{"_50":705,"_212":706,"_210":707,"_213":500,"_215":501},"gid://shopify/ArticleImage/275628392526","Polluted skies of Almaty.","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/AlmatyDesktop.jpg?v=1793204644",{"_52":502},{"_63":61},"India's air quality deteriorates every winter as stubble burning, temperature inversions, and urban emissions push AQI into unhealthy ranges across major cities. Learn more about the affected regions, causes, and when conditions may improve.","

India's air quality deteriorates every winter as stubble burning, temperature inversions, and urban emissions push AQI into unhealthy ranges across major cities. Learn more about the affected regions, causes, and when conditions may improve.

","Is the air quality good in India? As of October 29, 2026, air quality in India remains poor, with major cities experiencing air quality in the unhealthy to very unhealthy range and high PM2.5 concentrations, posing health risks to residents, especially children and the elderly. By 10:30 AM IST (Indian Standard Time, GMT+5:30), many urban centers have recorded AQI readings between 100 and 300, 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 poor, India’s average PM2.5 concentration in 2025 was 48.9 µg/m3, equivalent to an AQI of 134, classified as \"unhealthy for sensitive groups\". This level is nearly 9.8 times higher than the WHO annual guideline of 5 µg/m3, placing India sixth globally in the 2025 World Air Quality Report. Which cities are affected by bad air quality in India? As of October 29, 2026, several major cities across India are reporting poor air quality. Some of the affected cities include: Agra Asansol Delhi Mumbai Raiganj Air quality conditions can change throughout the day. For a complete, real-time overview of pollution levels nationwide, see India's air quality map. Delhi and Mumbai ranked among the most polluted major cities globally as of 10:30 AM (IST), October 29, 2026. Source: IQAir. When will the air quality improve in India? As the monsoon withdraws in October, India's air quality enters its most challenging seasonal period. Temperature inversions and a shallow planetary boundary layer trap pollutants near the surface, sustaining poor to severe AQI categories across India from October through February. Short-term improvements depend on favorable weather, with winds and rain helping to disperse pollutants. Full relief will not arrive until the following monsoon season, and lasting improvement requires stronger policy enforcement and effective regulation of stubble burning. What is causing poor air quality in India? The root causes of air pollution in India include household emissions, power sector emissions, industrial activities, transportation, open burning of crops and waste, and dust, with household emissions contributing about 30 to 50% of ambient PM2.5 levels year-round (1). As autumn transitions into winter, stubble burning in Punjab and Haryana peaks between late October and mid-November, explaining 78% of Delhi's aerosol variance during this period (2). Post-monsoon temperature inversions intensify pollution further, with Diwali fireworks adding a sharp additional spike, pushing 80% of cities into severe or hazardous air quality categories on festival nights (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 India?

As of October 29, 2026, air quality in India remains poor, with major cities experiencing air quality in the unhealthy to very unhealthy range and high PM2.5 concentrations, posing health risks to residents, especially children and the elderly.

By 10:30 AM IST (Indian Standard Time, GMT+5:30), many urban centers have recorded AQI readings between 100 and 300, 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 poor, India’s average PM2.5 concentration in 2025 was 48.9 µg/m3, equivalent to an AQI of 134, classified as \"unhealthy for sensitive groups\". This level is nearly 9.8 times higher than the WHO annual guideline of 5 µg/m3, placing India sixth globally in the 2025 World Air Quality Report.

Which cities are affected by bad air quality in India?

As of October 29, 2026, several major cities across India are reporting poor air quality. Some of the affected cities include:

Agra
Asansol
Delhi
Mumbai
Raiganj

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

$\"Delhi$ Delhi and Mumbai ranked among the most polluted major cities globally as of 10:30 AM (IST), October 29, 2026. Source: IQAir.

When will the air quality improve in India?

As the monsoon withdraws in October, India's air quality enters its most challenging seasonal period. Temperature inversions and a shallow planetary boundary layer trap pollutants near the surface, sustaining poor to severe AQI categories across India from October through February.

Short-term improvements depend on favorable weather, with winds and rain helping to disperse pollutants. Full relief will not arrive until the following monsoon season, and lasting improvement requires stronger policy enforcement and effective regulation of stubble burning.

What is causing poor air quality in India?

The root causes of air pollution in India include household emissions, power sector emissions, industrial activities, transportation, open burning of crops and waste, and dust, with household emissions contributing about 30 to 50% of ambient PM2.5 levels year-round (1).

As autumn transitions into winter, stubble burning in Punjab and Haryana peaks between late October and mid-November, explaining 78% of Delhi's aerosol variance during this period (2). Post-monsoon temperature inversions intensify pollution further, with Diwali fireworks adding a sharp additional spike, pushing 80% of cities into severe or hazardous air quality categories on festival nights (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.

","india-air-quality-alert","gid://shopify/Article/638007312462","https://shop.iqair.cn/en/blogs/news/india-air-quality-alert","2026-10-29T05:07:59Z",[503,653],"India Air Quality Alert",{"_50":721,"_212":722,"_210":723,"_213":500,"_215":501},"gid://shopify/ArticleImage/275448070222","Small group of people cycling in morning smog.","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/DelhiDesktop_e0510b91-c379-4912-aef9-8ec0af199b4c.jpg?v=1792640606",{"_52":502},{"_63":61},"Pakistan's air quality deteriorates every winter as crop burning, temperature inversions, and urban emissions drive AQI into hazardous ranges. Learn more about the causes and when conditions may improve.","

Pakistan's air quality deteriorates every winter as crop burning, temperature inversions, and urban emissions drive AQI into hazardous ranges. Learn more about the causes and when conditions may improve.

","Is the air quality good in Pakistan? As of October 31, 2026, air quality in Pakistan remains poor, with major cities experiencing air quality in the \"unhealthy\" to \"very unhealthy\" range and high PM2.5 concentrations, posing health risks to residents, especially children and the elderly. By 11:30 AM (Pakistan Standard Time, GMT+5), some urban centers have recorded AQI readings between 100 and 300, 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 poor, Pakistan’s average PM2.5 concentration in 2025 was 67.3 µg/m³, nearly 14 times higher than the WHO annual guideline of 5 µg/m³. This level corresponds to an AQI of 156, classified as “unhealthy,” making Pakistan the most polluted country globally in the 2025 World Air Quality Report. Air quality map of Pakistan and neighboring countries, as of 11:30 AM (PST) on October 31, 2026. Source: IQAir. Which cities are affected by bad air quality in Pakistan? As of October 31, 2026, several major cities across Pakistan are reporting poor air quality. Some of the affected cities include: Faisalabad Gujranwala Karachi Lahore Multan Peshawar Air quality conditions can change throughout the day. For a complete, real-time overview of pollution levels nationwide, see Pakistan's air quality map. Lahore and Karachi ranked among the world's most polluted major cities as of 11:30 AM (PST) on October 31, 2026. Source: IQAir. When will the air quality improve in Pakistan? Pakistan's air quality follows a well-documented seasonal pattern, with pollution peaking from October through February as temperature inversions and stagnant cold air trap pollutants near the surface. Spring months from March through May see a secondary elevation driven by dust and wheat harvesting, while the monsoon season from June through September provides the only period of meaningful relief. Short-term improvement depends on wind, rain, and stronger atmospheric mixing. Lasting improvement requires effective enforcement of anti-smog regulations and regulation of crop residue burning across Punjab (1). What is causing poor air quality in Pakistan? The root causes of air pollution in Pakistan include industrial emissions, vehicular exhaust, agricultural practices like overuse of fertilizers and crop residue burning, biomass and waste burning, domestic fires, and urbanization (2). As autumn transitions into winter, temperature inversions begin to trap pollutants near the surface, preventing dispersal. Crop residue burning from both Pakistani and Indian Punjab peaks between late October and mid-November, adding dense smoke to an already polluted atmosphere, while increasing use of heating fuels and brick kilns further intensifies the pollution burden across major cities (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 Pakistan?

As of October 31, 2026, air quality in Pakistan remains poor, with major cities experiencing air quality in the \"unhealthy\" to \"very unhealthy\" range and high PM2.5 concentrations, posing health risks to residents, especially children and the elderly.

By 11:30 AM (Pakistan Standard Time, GMT+5), some urban centers have recorded AQI readings between 100 and 300, 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 poor, Pakistan’s average PM2.5 concentration in 2025 was 67.3 µg/m³, nearly 14 times higher than the WHO annual guideline of 5 µg/m³. This level corresponds to an AQI of 156, classified as “unhealthy,” making Pakistan the most polluted country globally in the 2025 World Air Quality Report.

$\"Air$ Air quality map of Pakistan and neighboring countries, as of 11:30 AM (PST) on October 31, 2026. Source: IQAir.

Which cities are affected by bad air quality in Pakistan?

As of October 31, 2026, several major cities across Pakistan are reporting poor air quality. Some of the affected cities include:

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

$\"Lahore$ Lahore and Karachi ranked among the world's most polluted major cities as of 11:30 AM (PST) on October 31, 2026. Source: IQAir.

When will the air quality improve in Pakistan?

Pakistan's air quality follows a well-documented seasonal pattern, with pollution peaking from October through February as temperature inversions and stagnant cold air trap pollutants near the surface. Spring months from March through May see a secondary elevation driven by dust and wheat harvesting, while the monsoon season from June through September provides the only period of meaningful relief.

Short-term improvement depends on wind, rain, and stronger atmospheric mixing. Lasting improvement requires effective enforcement of anti-smog regulations and regulation of crop residue burning across Punjab (1).

What is causing poor air quality in Pakistan?

The root causes of air pollution in Pakistan include industrial emissions, vehicular exhaust, agricultural practices like overuse of fertilizers and crop residue burning, biomass and waste burning, domestic fires, and urbanization (2).

As autumn transitions into winter, temperature inversions begin to trap pollutants near the surface, preventing dispersal. Crop residue burning from both Pakistani and Indian Punjab peaks between late October and mid-November, adding dense smoke to an already polluted atmosphere, while increasing use of heating fuels and brick kilns further intensifies the pollution burden across major cities (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.

","pakistan-air-quality-alert","gid://shopify/Article/637975527502","https://shop.iqair.cn/en/blogs/news/pakistan-air-quality-alert","2026-10-31T06:56:55Z",[503,653],"Pakistan Air Quality Alert",{"_50":737,"_212":738,"_210":739,"_213":500,"_215":501},"gid://shopify/ArticleImage/275479167054","Multiple buildings aerial shot","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/KarachiDesktop_7c321413-3ca0-4446-a29b-4d869d0b8a0e.jpg?v=1792221787",{"_52":502},{"_63":61},"China’s air quality deteriorates every autumn and winter as coal-fired heating, temperature inversions, and industrial emissions push PM2.5 into unhealthy ranges across northern cities. Learn more about the affected regions, causes, and when conditions may improve.","

China’s air quality deteriorates every autumn and winter as coal-fired heating, temperature inversions, and industrial emissions push PM2.5 into unhealthy ranges across northern cities. Learn more about the affected regions, causes, and when conditions may improve.

","Is the air quality good in China? As of November 2, 2026, air quality is poor in parts of China, with major cities experiencing air quality in the unhealthy to very unhealthy range and high PM2.5 concentrations, posing serious health risks to residents, especially children and the elderly. By 2:00 PM (Chinese Standard Time, GMT+8), several urban centers have recorded AQI readings between 100 and 300, 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 poor, China’s average PM2.5 concentration in 2025 was 29.6 µg/m3, equivalent to an AQI of 87, classified as \"moderate\". This level is nearly 5.92 times higher than the WHO annual guideline of 5 µg/m3, placing China among the world’s 20 most polluted countries in 2025. Air quality map of China and neighboring countries as of 2:00 PM (CST) on November 2, 2026. Source: IQAir. Which cities are affected by bad air quality in China? On November 2, 2026, several major cities across China are reporting poor air quality. Some of the affected cities include: Anshan Harbin Huainan Jiamusi Jinzhou Lanzhou Shanghai Shenyang Taian Tianjin Air quality conditions can change throughout the day. For a complete, real-time overview of pollution levels nationwide, see China's air quality map. Shanghai ranked among the most polluted major cities globally as of 2:00 PM (CST) on November 2, 2026. Source: IQAir. When will the air quality improve in China? China’s PM2.5 concentrations follow a well-documented U-shaped seasonal pattern, peaking in winter from December through February and reaching their lowest point in summer. This seasonal deterioration typically begins in October, as autumn cooling and increasing stagnation begin to raise air pollution across China ahead of the official coal-fired heating season starting November (1). Short-term improvement depends on wind, rain, and stronger atmospheric mixing. Lasting progress depends on continued enforcement of China’s clean energy transition and emission controls (2). What is causing poor air quality in China? The root causes of air pollution in China include dependence on fossil fuels, coal combustion, biomass burning, traffic and waste incineration emissions, industrial pollution, and soil dust, with coal and other fossil fuels exploited despite renewable investments (3). As temperatures drop, residential coal combustion becomes the dominant driver of PM2.5 across China, contributing approximately 46% of concentrations in the Beijing-Tianjin-Hebei region. Temperature inversions and air stagnation further trap emissions from coal-fired power plants, industrial zones, and vehicle exhaust near the surface, amplifying pollution across major cities (4). 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 China?

As of November 2, 2026, air quality is poor in parts of China, with major cities experiencing air quality in the unhealthy to very unhealthy range and high PM2.5 concentrations, posing serious health risks to residents, especially children and the elderly.

By 2:00 PM (Chinese Standard Time, GMT+8), several urban centers have recorded AQI readings between 100 and 300, 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 poor, China’s average PM2.5 concentration in 2025 was 29.6 µg/m3, equivalent to an AQI of 87, classified as \"moderate\". This level is nearly 5.92 times higher than the WHO annual guideline of 5 µg/m3, placing China among the world’s 20 most polluted countries in 2025.

$\"Air$ Air quality map of China and neighboring countries as of 2:00 PM (CST) on November 2, 2026. Source: IQAir.

Which cities are affected by bad air quality in China?

On November 2, 2026, several major cities across China are reporting poor air quality. Some of the affected cities include:

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

$\"Shanghai$ Shanghai ranked among the most polluted major cities globally as of 2:00 PM (CST) on November 2, 2026. Source: IQAir.

When will the air quality improve in China?

China’s PM2.5 concentrations follow a well-documented U-shaped seasonal pattern, peaking in winter from December through February and reaching their lowest point in summer. This seasonal deterioration typically begins in October, as autumn cooling and increasing stagnation begin to raise air pollution across China ahead of the official coal-fired heating season starting November (1).

Short-term improvement depends on wind, rain, and stronger atmospheric mixing. Lasting progress depends on continued enforcement of China’s clean energy transition and emission controls (2).

What is causing poor air quality in China?

The root causes of air pollution in China include dependence on fossil fuels, coal combustion, biomass burning, traffic and waste incineration emissions, industrial pollution, and soil dust, with coal and other fossil fuels exploited despite renewable investments (3).

As temperatures drop, residential coal combustion becomes the dominant driver of PM2.5 across China, contributing approximately 46% of concentrations in the Beijing-Tianjin-Hebei region. Temperature inversions and air stagnation further trap emissions from coal-fired power plants, industrial zones, and vehicle exhaust near the surface, amplifying pollution across major cities (4).

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.

","china-air-quality-alert","gid://shopify/Article/637998563406","https://shop.iqair.cn/en/blogs/news/china-air-quality-alert","2026-11-02T06:06:53Z",[503,653],"China Air Quality Alert",{"_50":753,"_212":754,"_210":755,"_213":500,"_215":501},"gid://shopify/ArticleImage/273143595086","Aerial view of multiple houses covered in haze.","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/BeijingDesktop_36a57bca-3920-4b88-aa89-3690b04b32a2.jpg?v=1793340435",{"_98":515,"_79":773,"_11":774,"_69":678,"_519":679,"_71":680,"_73":681,"_63":682,"_50":683,"_525":684,"_111":-5,"_75":685,"_77":775,"_67":687,"_81":776},{"_98":515,"_79":758,"_11":759,"_69":760,"_519":761,"_71":762,"_73":763,"_63":764,"_50":765,"_525":766,"_111":-5,"_75":767,"_77":768,"_67":769,"_81":770},{"_52":502},{"_63":61},"Which air filter rating system can be trusted when it comes to CADR, HEPA, and HyperHEPA? We take a deep dive to find out what’s behind the hype.","

Which air filter rating system can be trusted when it comes to CADR, HEPA, and HyperHEPA? We take a deep dive to find out what’s behind the hype.

","There are several air filter rating systems. This can make it difficult for consumers to know who or what to trust. Learn about the different rating systems, terminology, and their pros and cons, including Clean Air Delivery Rate (CADR), room-size ratings, air changes per hour (ACH), HEPA, “True HEPA,” “HEPA-type,” “HEPA-like,” “HEPA-style,” “99% HEPA,” H13/H14 HEPA, “HEPAsilent,” and HyperHEPA. What is Clean Air Delivery Rate (CADR)? Clean Air Delivery Rate (CADR) was developed by the Association of Home Appliance Manufacturers (AHAM) to help consumers compare how quickly portable air purifiers reduce airborne particles. AHAM represents appliance manufacturers, and participation in its verification program is voluntary. CADR applies to stand-alone room air purifiers, not whole-house filtration systems. CADR is expressed in cubic feet per minute (cfm). It describes how much equivalent clean air a purifier delivers, based on the rate at which particles disappear from a test chamber after accounting for their natural decline. In AHAM’s 1,008-cubic-foot chamber, the purifier receives separate ratings for tobacco smoke, dust, and pollen. Smoke and dust tests last 20 minutes; the pollen test lasts 10. A higher CADR means faster removal of the tested airborne particles under those conditions (1). CADR only tests performance for no more than the first twenty minutes of operation. The CADR rating system has many weaknesses that dramatically limit its usefulness, including: It does not show long-term performance. A test lasting 10 to 20 minutes cannot show how a purifier performs after weeks or months of real-world use. Air purifier performance can degrade over time depending on environmental factors and a variety of indoor air pollutants that laboratory testing can’t capture (2). It does not give a separate rating for ultrafine particles. Tobacco smoke represents the smallest particles in the standard CADR tests, but its test range begins at about 0.1 microns. CADR does not report performance at each size below that point. Ultrafine particles can make up much of the particle count in ambient air, so consumers concerned about them should look for particle-size-specific test results. It does not measure removal of gases, chemicals, or odors. The familiar smoke, dust, and pollen CADRs measure particles, not volatile organic compounds (VOCs) or odors. AHAM has published a separate standard for chemical reduction, but a particle CADR does not convey those results. It does not show where particles go. CADR measures a reduction in airborne particles. Some ion-generating devices charge particles so they collect on walls or furnishings rather than in the purifier. Deposited particles can later be stirred back into the air. The EPA also notes that charging particles may affect how they deposit in the respiratory tract. The CADR number does not measure ozone emissions. Avoid air cleaners that intentionally generate ozone in occupied spaces. Ozone can irritate the lungs, and some electronic or ionizing cleaners may emit it as a byproduct. It may not reflect the speed used every day. A published CADR is typically measured at the highest setting, while many people use a quieter speed. The headline number does not show how quickly the purifier removes airborne particles at low or medium settings. Particle-removal rates and noise levels measured at each fan speed give a clearer picture of its performance in daily use. These limitations make CADR an unreliable measure of an air purifier’s overall performance. For this reason, IQAir does not consider CADR a valid standalone method for evaluating air purifiers and does not participate in AHAM’s rating program. Room size ratings Many air purifiers are advertised as suitable for a specific room size. These ratings are usually calculated directly from CADR. Under AHAM's guidance, multiplying the smoke CADR by about 1.55 gives the recommended maximum room area, assuming an 8-foot ceiling. In theory, a unit with a CADR of 100 would be suitable for a room of about 155 square feet. At that room size, AHAM’s calculation assumes roughly 4.8 equivalent clean-air changes per hour (3). Because room-size ratings are derived from CADR, they inherit all of its limitations. They reflect a new unit running at its highest speed for a short test, so they say nothing about how well the unit will serve that room after months of use, at a quieter fan setting, or against ultrafine particles and gases. Rooms with higher ceilings, open floor plans, or heavy pollution sources also need more cleaning capacity than the rating suggests. When sizing an air purifier, it is more useful to consider effective air changes per hour (ACH), or how many room volumes’ worth of clean air the unit delivers each hour, at the fan speed you will actually use, alongside verified filtration results for the particle sizes of concern. What is High Efficiency Particulate Air (HEPA)? The acronym “HEPA” stands for High Efficiency Particulate Air, a type of air filter originally designed in the 1940s to protect workers developing the atomic bomb. The filter was designed to control tiny particles contaminated with radioactive material. HEPA filters work in mechanical air purifiers and are often made with randomly arranged micro-glass fibers. As defined by the U.S. government, HEPA filters must remove a minimum of 99.97% of particles 0.3 microns in diameter to qualify as HEPA. This is a particularly difficult particle size to capture; HEPA filters also capture particles smaller than 0.3 microns. Therefore, “HEPA” refers to both a type of filter technology and an efficiency standard. Due to its high efficiency, reliability, and proven track record, HEPA technology has become an industry standard for particulate filtration in critical environments, such as laboratories and hospital operating rooms. There is no universal requirement that a household air purifier be independently tested as a complete unit to verify its HEPA claim. Recognizing the great marketing potential of the term “HEPA,” many manufacturers use it to project a high-performance image onto their room air purifiers. The problem is that a filter’s HEPA rating does not necessarily tell consumers how the finished purifier performs. Air can leak around a poorly fitted filter, and damage during manufacturing or use can also affect performance. To confuse consumers further, there are more and more types of HEPA claims entering the market. “True HEPA,” “HEPA-type,” “HEPA-like,” “HEPA-style,” “99% HEPA,” H13/H14 HEPA, and “HEPASilent” are some of the terms consumers are faced with deciphering. “True HEPA” is a marketing term designed to assure customers that a filter meets the HEPA standard, but the words themselves are not a certification. “HEPA-type,” “HEPA-like,” and “HEPA-style” are weak claims because they identify no tested HEPA grade. A “99% HEPA” claim falls short of the U.S. HEPA benchmark of 99.97% at 0.3 microns if measured under the same conditions. H13 and H14, on the other hand, are genuine HEPA filter classes under a different standard, with H14 the stricter grade. HEPASilent is a branded filtration technology that has demonstrated HEPA-level filter efficiency in independent testing. Whatever the label, a filter result alone does not verify the performance of the complete air purifier (4). Some so-called HEPA filters are made of ordinary synthetic fibers, which should not be assumed to perform like tested HEPA media. Other air cleaners use electrostatic particle charging or ionization. Ionizers should be avoided because they can deposit charged particles on room surfaces, and some produce ozone. Particle-collecting plates can also become loaded and lose efficiency if they are not cleaned. Charged filter media can lose efficiency over time, too: in one study of ventilation filters, efficiency fell by nearly 50% after just 11 weeks of use. Is “True HEPA” truly the gold standard? Filters that achieve the HEPA standard remove at least 99.97% of particles 0.3 microns in diameter. This is a particularly difficult particle size to capture, not the smallest size a HEPA filter can remove. Airborne particles are categorized into several sizes, including coarse, fine, and ultrafine. The smallest particles ultrafines can make up around 90% of airborne particles by number in some settings and are of particular health concern. HEPA rating tells you how a filter performs in a standard test, but not how efficiently the complete air purifier removes ultrafine particles. Ultrafine particles are smaller than 0.1 microns and include particles as small as 0.003 microns. Once inhaled, they can reach deep into the lungs. A small fraction can pass into the bloodstream and travel to other organs, including the brain (5). The U.S. HEPA benchmark specifies filter efficiency at 0.3 microns, while H13/H14 filters are tested at their most penetrating particle size. Neither result alone establishes the complete purifier’s efficiency. What is HyperHEPA filtration technology? HEPA is an established standard for high-efficiency particle filtration. IQAir’s patented HyperHEPA filtration technology takes it a step further by filtering ultrafine particles down to 0.003 microns, 100 times smaller than the 0.3-micron particle size used for the conventional HEPA benchmark. IQAir’s patented HyperHEPA filtration technology is able to filter ultrafines down to 0.003 microns– that’s ten times smaller than most viruses! IQAir’s HyperHEPA filtration is tested and certified by an independent, third-party laboratory to ensure it is effectively filtering ultrafine particles down to 0.003 microns. Conclusion The right air purifier can make a meaningful difference to the air you breathe. To make an informed choice, look beyond marketing jargon and headline ratings. Consider which pollutants you need to remove, whether performance has been verified for the complete purifier, and how well it works at a fan speed you will actually use. Frequently Asked Questions (FAQs) Is a higher CADR always better? A higher CADR means an air purifier removed the tested particles faster under test conditions, usually at its highest fan speed. It does not show how the purifier performs after months of use, at a quieter speed, or against gases and odors. CADR should not be the only basis for choosing a purifier. How can I tell if an air purifier's performance claims are trustworthy? Look for independent testing of the fully assembled air purifier, not just its filter, with efficiency data for particles below 0.1 microns. Check for proven long-term performance, a substantial activated carbon filter for gases and odors, and no ionizers or ozone generation. How is HyperHEPA different from HEPA? HEPA filters are rated against a 0.3-micron benchmark, although they also capture smaller particles. IQAir’s HyperHEPA filtration has been independently tested to capture at least 99.5% of particles down to 0.003 microns. IQAir also measures performance in the assembled air purifier, giving consumers information beyond just the filter rating. Does “True HEPA” mean the entire air purifier removes 99.97% of particles? No. \"True HEPA\" refers to a claimed filter efficiency of at least 99.97% at 0.3 microns. It does not verify the performance of the assembled air purifier. Terms such as \"HEPA-type\" and \"HEPA-like\" do not show that a filter meets the HEPA standard at all.","

There are several air filter rating systems. This can make it difficult for consumers to know who or what to trust. Learn about the different rating systems, terminology, and their pros and cons, including Clean Air Delivery Rate (CADR), room-size ratings, air changes per hour (ACH), HEPA, “True HEPA,” “HEPA-type,” “HEPA-like,” “HEPA-style,” “99% HEPA,” H13/H14 HEPA, “HEPAsilent,” and HyperHEPA.

What is Clean Air Delivery Rate (CADR)?

Clean Air Delivery Rate (CADR) was developed by the Association of Home Appliance Manufacturers (AHAM) to help consumers compare how quickly portable air purifiers reduce airborne particles. AHAM represents appliance manufacturers, and participation in its verification program is voluntary. CADR applies to stand-alone room air purifiers, not whole-house filtration systems.

CADR is expressed in cubic feet per minute (cfm). It describes how much equivalent clean air a purifier delivers, based on the rate at which particles disappear from a test chamber after accounting for their natural decline. In AHAM’s 1,008-cubic-foot chamber, the purifier receives separate ratings for tobacco smoke, dust, and pollen. Smoke and dust tests last 20 minutes; the pollen test lasts 10. A higher CADR means faster removal of the tested airborne particles under those conditions (1).

CADR only tests performance for no more than the first twenty minutes of operation.

The CADR rating system has many weaknesses that dramatically limit its usefulness, including:

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It does not show long-term performance. A test lasting 10 to 20 minutes cannot show how a purifier performs after weeks or months of real-world use. Air purifier performance can degrade over time depending on environmental factors and a variety of indoor air pollutants that laboratory testing can’t capture (2).
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It does not give a separate rating for ultrafine particles. Tobacco smoke represents the smallest particles in the standard CADR tests, but its test range begins at about 0.1 microns. CADR does not report performance at each size below that point. Ultrafine particles can make up much of the particle count in ambient air, so consumers concerned about them should look for particle-size-specific test results.
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It does not measure removal of gases, chemicals, or odors. The familiar smoke, dust, and pollen CADRs measure particles, not volatile organic compounds (VOCs) or odors. AHAM has published a separate standard for chemical reduction, but a particle CADR does not convey those results.
\n
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It does not show where particles go. CADR measures a reduction in airborne particles. Some ion-generating devices charge particles so they collect on walls or furnishings rather than in the purifier. Deposited particles can later be stirred back into the air. The EPA also notes that charging particles may affect how they deposit in the respiratory tract.
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The CADR number does not measure ozone emissions. Avoid air cleaners that intentionally generate ozone in occupied spaces. Ozone can irritate the lungs, and some electronic or ionizing cleaners may emit it as a byproduct.
\n
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It may not reflect the speed used every day. A published CADR is typically measured at the highest setting, while many people use a quieter speed. The headline number does not show how quickly the purifier removes airborne particles at low or medium settings. Particle-removal rates and noise levels measured at each fan speed give a clearer picture of its performance in daily use.
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These limitations make CADR an unreliable measure of an air purifier’s overall performance. For this reason, IQAir does not consider CADR a valid standalone method for evaluating air purifiers and does not participate in AHAM’s rating program.

\nRoom size ratings

Many air purifiers are advertised as suitable for a specific room size. These ratings are usually calculated directly from CADR. Under AHAM's guidance, multiplying the smoke CADR by about 1.55 gives the recommended maximum room area, assuming an 8-foot ceiling. In theory, a unit with a CADR of 100 would be suitable for a room of about 155 square feet. At that room size, AHAM’s calculation assumes roughly 4.8 equivalent clean-air changes per hour (3).

Because room-size ratings are derived from CADR, they inherit all of its limitations. They reflect a new unit running at its highest speed for a short test, so they say nothing about how well the unit will serve that room after months of use, at a quieter fan setting, or against ultrafine particles and gases. Rooms with higher ceilings, open floor plans, or heavy pollution sources also need more cleaning capacity than the rating suggests.

When sizing an air purifier, it is more useful to consider effective air changes per hour (ACH), or how many room volumes’ worth of clean air the unit delivers each hour, at the fan speed you will actually use, alongside verified filtration results for the particle sizes of concern.

What is High Efficiency Particulate Air (HEPA)?

The acronym “HEPA” stands for High Efficiency Particulate Air, a type of air filter originally designed in the 1940s to protect workers developing the atomic bomb. The filter was designed to control tiny particles contaminated with radioactive material. HEPA filters work in mechanical air purifiers and are often made with randomly arranged micro-glass fibers.

As defined by the U.S. government, HEPA filters must remove a minimum of 99.97% of particles 0.3 microns in diameter to qualify as HEPA. This is a particularly difficult particle size to capture; HEPA filters also capture particles smaller than 0.3 microns.

Therefore, “HEPA” refers to both a type of filter technology and an efficiency standard. Due to its high efficiency, reliability, and proven track record, HEPA technology has become an industry standard for particulate filtration in critical environments, such as laboratories and hospital operating rooms.

There is no universal requirement that a household air purifier be independently tested as a complete unit to verify its HEPA claim.

Recognizing the great marketing potential of the term “HEPA,” many manufacturers use it to project a high-performance image onto their room air purifiers. The problem is that a filter’s HEPA rating does not necessarily tell consumers how the finished purifier performs. Air can leak around a poorly fitted filter, and damage during manufacturing or use can also affect performance.

To confuse consumers further, there are more and more types of HEPA claims entering the market. “True HEPA,” “HEPA-type,” “HEPA-like,” “HEPA-style,” “99% HEPA,” H13/H14 HEPA, and “HEPASilent” are some of the terms consumers are faced with deciphering.

“True HEPA” is a marketing term designed to assure customers that a filter meets the HEPA standard, but the words themselves are not a certification. “HEPA-type,” “HEPA-like,” and “HEPA-style” are weak claims because they identify no tested HEPA grade. A “99% HEPA” claim falls short of the U.S. HEPA benchmark of 99.97% at 0.3 microns if measured under the same conditions. H13 and H14, on the other hand, are genuine HEPA filter classes under a different standard, with H14 the stricter grade. HEPASilent is a branded filtration technology that has demonstrated HEPA-level filter efficiency in independent testing. Whatever the label, a filter result alone does not verify the performance of the complete air purifier (4).

Some so-called HEPA filters are made of ordinary synthetic fibers, which should not be assumed to perform like tested HEPA media. Other air cleaners use electrostatic particle charging or ionization. Ionizers should be avoided because they can deposit charged particles on room surfaces, and some produce ozone. Particle-collecting plates can also become loaded and lose efficiency if they are not cleaned. Charged filter media can lose efficiency over time, too: in one study of ventilation filters, efficiency fell by nearly 50% after just 11 weeks of use.

Is “True HEPA” truly the gold standard?

Filters that achieve the HEPA standard remove at least 99.97% of particles 0.3 microns in diameter. This is a particularly difficult particle size to capture, not the smallest size a HEPA filter can remove. Airborne particles are categorized into several sizes, including coarse, fine, and ultrafine. The smallest particles ultrafines can make up around 90% of airborne particles by number in some settings and are of particular health concern.

HEPA rating tells you how a filter performs in a standard test, but not how efficiently the complete air purifier removes ultrafine particles.

Ultrafine particles are smaller than 0.1 microns and include particles as small as 0.003 microns. Once inhaled, they can reach deep into the lungs. A small fraction can pass into the bloodstream and travel to other organs, including the brain (5).

The U.S. HEPA benchmark specifies filter efficiency at 0.3 microns, while H13/H14 filters are tested at their most penetrating particle size. Neither result alone establishes the complete purifier’s efficiency.

What is HyperHEPA filtration technology?

HEPA is an established standard for high-efficiency particle filtration. IQAir’s patented HyperHEPA filtration technology takes it a step further by filtering ultrafine particles down to 0.003 microns, 100 times smaller than the 0.3-micron particle size used for the conventional HEPA benchmark.

IQAir’s patented HyperHEPA filtration technology is able to filter ultrafines down to 0.003 microns– that’s ten times smaller than most viruses!

IQAir’s HyperHEPA filtration is tested and certified by an independent, third-party laboratory to ensure it is effectively filtering ultrafine particles down to 0.003 microns.

Conclusion

The right air purifier can make a meaningful difference to the air you breathe. To make an informed choice, look beyond marketing jargon and headline ratings. Consider which pollutants you need to remove, whether performance has been verified for the complete purifier, and how well it works at a fan speed you will actually use.

Frequently Asked Questions (FAQs)

Is a higher CADR always better?

A higher CADR means an air purifier removed the tested particles faster under test conditions, usually at its highest fan speed. It does not show how the purifier performs after months of use, at a quieter speed, or against gases and odors. CADR should not be the only basis for choosing a purifier.

How can I tell if an air purifier's performance claims are trustworthy?

Look for independent testing of the fully assembled air purifier, not just its filter, with efficiency data for particles below 0.1 microns. Check for proven long-term performance, a substantial activated carbon filter for gases and odors, and no ionizers or ozone generation.

How is HyperHEPA different from HEPA?

HEPA filters are rated against a 0.3-micron benchmark, although they also capture smaller particles. IQAir’s HyperHEPA filtration has been independently tested to capture at least 99.5% of particles down to 0.003 microns. IQAir also measures performance in the assembled air purifier, giving consumers information beyond just the filter rating.

Does “True HEPA” mean the entire air purifier removes 99.97% of particles?

No. \"True HEPA\" refers to a claimed filter efficiency of at least 99.97% at 0.3 microns. It does not verify the performance of the assembled air purifier. Terms such as \"HEPA-type\" and \"HEPA-like\" do not show that a filter meets the HEPA standard at all.

","air-purifier-ratings","gid://shopify/Article/564862156878","https://shop.iqair.cn/en/blogs/news/air-purifier-ratings","2026-10-27T07:00:00Z",[637,14],"Which air filter rating should you trust?",{"_50":771,"_212":-5,"_210":772,"_213":584,"_215":585},"gid://shopify/ArticleImage/275573145678","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/Article_FilterRating_A.jpg?v=1792519033",{"_52":502},{"_63":61},[637,503,14,504],{"_50":689,"_212":690,"_210":691,"_213":584,"_215":585},"Air Quality News - Featured articles","https://www.iqair.cn/cn-en/newsroom?tag=Featured+articles","jsonLd",{"_781":782,"_783":784,"_52":777,"_103":185,"_210":778},"@context","https://schema.org","@type","Blog","Air Quality News",{"_67":-5,"_103":-5},"articles",{"_94":789,"_790":791},[799,800,801,802,803,804],"pageInfo",{"_792":793,"_794":793,"_795":796,"_797":798},"hasPreviousPage",false,"hasNextPage","endCursor","eyJsYXN0X2lkIjo2NDIzOTU3NjY4NjIsImxhc3RfdmFsdWUiOjE3OTEyMTQ3MzAwMDAsIm9mZnNldCI6NX0=","startCursor","eyJsYXN0X2lkIjo2NDI1Nzg1NDY3NjYsImxhc3RfdmFsdWUiOjE3OTMxOTk2MDQwMDAsIm9mZnNldCI6MH0=",{"_98":515,"_79":876,"_11":877,"_69":678,"_519":679,"_71":680,"_73":681,"_63":682,"_50":683,"_525":684,"_111":-5,"_75":685,"_77":878,"_67":687,"_81":879},{"_98":515,"_79":872,"_11":873,"_69":760,"_519":761,"_71":762,"_73":763,"_63":764,"_50":765,"_525":766,"_111":-5,"_75":767,"_77":874,"_67":769,"_81":875},{"_98":515,"_79":855,"_11":856,"_69":857,"_519":858,"_71":859,"_73":860,"_63":861,"_50":862,"_525":863,"_111":-5,"_75":864,"_77":865,"_67":866,"_81":867},{"_98":515,"_79":838,"_11":839,"_69":840,"_519":841,"_71":842,"_73":843,"_63":844,"_50":845,"_525":846,"_111":-5,"_75":847,"_77":848,"_67":849,"_81":850},{"_98":515,"_79":823,"_11":824,"_69":825,"_519":826,"_71":827,"_73":828,"_63":829,"_50":830,"_525":831,"_111":-5,"_75":832,"_77":833,"_67":834,"_81":835},{"_98":515,"_79":805,"_11":806,"_69":807,"_519":808,"_71":809,"_73":810,"_63":811,"_50":812,"_525":813,"_111":-5,"_75":814,"_77":815,"_67":816,"_81":817},{"_52":502},{"_63":61},"As autumn approaches and temperatures drop, pollutant activity is on the rise. Learn about the impacts of seasonal allergens on health and how to reduce unhealthy exposure.","

As autumn approaches and temperatures drop, pollutant activity is on the rise. Learn about the impacts of seasonal allergens on health and how to reduce unhealthy exposure.

","A single ragweed plant can release one billion grains of pollen in a season. Even a fraction of that, drifting indoors, is enough to turn a home into a source of prolonged exposure. As the weather begins to cool and autumn approaches, increased allergens and outdoor pollutants are on the rise. Moist climates and elevated pollen activity can invade homes, compromising air quality and pre-existing health conditions. Without proper dehumidification, air purification, and ventilation, allergens can linger and stick to common surfaces. By understanding autumn environmental conditions, allergen activity, and optimal pollutant prevention methods, clean air quality indoors can be maintained throughout seasonal changes. Where and why do air quality events and allergies rise in autumn? During the early weeks of autumn, global plant growth and environmental changes create conditions for pollutants to thrive and produce at elevated levels. Ragweed pollination produces up to one billion grains of pollen per weed during one growth season in the United States (1). Ragweed plants are common weeds that can grow anywhere, with early growth stages beginning in March and pollen typically released starting late August. In Canada, ragweed pollen is the main cause of seasonal rhinitis, impacting every 1 in 5 people in Québec (2). In Europe, ongoing climate change and warming temperatures may elevate ragweed pollination. According to a 2017 study, researchers are estimating ragweed sensitivities to double from 33 to 77 million people affected by 2060 due to prolonged pollination seasons (3). Global climate change could further delay frosty climates; therefore, prolonging pollen activity within certain regions depending on weather. In Korea, invasive Japanese hop plants cause increased pollen activity and autumn allergies across the country. According to a 2013 study, consistent exposure to Japanese hop pollen particles can lead to increased hospitalization rates and allergic reactions (4). The Japanese hop follows similar growth patterns as ragweeds, producing pollen up until the first frost over in October or November. Autumn pollination can invade homes and create poor indoor air conditions for allergies sufferers, leading to prolonged exposure and elevated health risks. How do seasonal allergens impact health? Seasonal allergens can cause allergy flare-ups and respiratory irritation, especially for those with pre-existing medical conditions and predisposed immune systems. According to a 2025 research study, ragweeds have been linked to asthma and allergic rhinitis. Poor ventilation can exacerbate these conditions. Health risks associated with seasonal allergens can range from allergy-based inflammation to feverish symptoms, such as (5): Hay fever Sinus infections Asthmatic flare-ups Allergy symptoms Respiratory complications As cool rainy climates increase during autumn, excessive indoor moisture and mold spores can also be common within poorly ventilated spaces. Numerous studies have linked long-term mold spore exposure to both physical and mental health complications, from increased levels of depression and anxiety to biological changes within the immune system (6). Without proper ventilation, dehumidification, or air purification, moist climates can lead to mold growth indoors, especially within dark enclosed spaces such as closets, cabinets, and furniture. How to reduce exposure to autumn allergens In conjunction with active ventilation, advanced multistage air purification can help prevent airborne pollutants and allergies from circulating indoors. HyperHEPA ultrafine filtration provides the most optimal purification support, capturing 99.5% of airborne pollutants down to 0.003 microns in size. Room air purifiers specifically target seasonal pollutants and trap a wide range of microscopic particles, such as: Pollen Wildfire smoke Mold spores Dust Bacteria Viruses PM2.5, particulate matter less than 2.5 microns in diameter PM10, particulate matter less than 10 microns in diameter HVAC air purifiers can provide comprehensive whole house air quality protection. HVAC air purifiers utilize existing heating, ventilation and air conditioning systems to remove ultrafine particles from indoor air. Air purifiers can be valuable tools for managing seasonal allergies and indoor mold spores. Air purification systems can be paired either with indoor air quality monitoring to determine how clean the air in a room is in real-time. Tips for a pollutant-free autumn Air purification devices and active ventilation are key for reducing pollutants, but air quality monitoring and source control can prevent unhealthy exposure from occurring at all. By being mindful of seasonal climate changes and monitoring pollutants, ventilation practices can be performed optimally and produce positive air quality changes. To limit pollen and mold exposures indoors, daily clean air methods can have immense impact alongside air purification, such as: Pollutant source control: Avoid scented chemical cleaning aerosols, limit humidifier utilization during moist weather conditions, and routinely disinfect commonly used surfaces and enclosed spaces. Because allergens may be brought in from outdoors, leave shoes by the door and consider changing clothes when coming inside (8). Active ventilation: Open windows to prevent indoor moisture buildup, utilize fans to increase airflow between rooms, and employ an HVAC-based air purifier for dual ventilation and filtration action. Air quality awareness: Close windows during air quality events, utilize multistage HyperHEPA air purifiers for maximized filtration, and employ indoor and outdoor air quality monitors to track pollutant activity. Seasonal allergies and rainy climates do not have to overwhelm indoor spaces. Advanced air purification in conjunction with clean air methods can create healthy breathing spaces and protect personal health from irritable allergies. Conclusion Seasonal changes bring different air quality events and airborne pollutants that can invade homes and impact health through prolonged exposure. But with the proper ventilation practices, dehumidification, and advanced air purification, airborne pollutants do not have to overwhelm personal health symptoms. Ultrafine air purification and localized air monitoring can help filtrate unhealthy pollutants, supporting allergy and respiratory symptom relief. Employing air quality monitoring and ultrafine filtration this autumn can help ensure at-home autumn festivities and quality family moments go uninterrupted.","

A single ragweed plant can release one billion grains of pollen in a season. Even a fraction of that, drifting indoors, is enough to turn a home into a source of prolonged exposure.

As the weather begins to cool and autumn approaches, increased allergens and outdoor pollutants are on the rise. Moist climates and elevated pollen activity can invade homes, compromising air quality and pre-existing health conditions. Without proper dehumidification, air purification, and ventilation, allergens can linger and stick to common surfaces.

By understanding autumn environmental conditions, allergen activity, and optimal pollutant prevention methods, clean air quality indoors can be maintained throughout seasonal changes.

Where and why do air quality events and allergies rise in autumn?

During the early weeks of autumn, global plant growth and environmental changes create conditions for pollutants to thrive and produce at elevated levels.

Ragweed pollination produces up to one billion grains of pollen per weed during one growth season in the United States (1). Ragweed plants are common weeds that can grow anywhere, with early growth stages beginning in March and pollen typically released starting late August. In Canada, ragweed pollen is the main cause of seasonal rhinitis, impacting every 1 in 5 people in Québec (2).

In Europe, ongoing climate change and warming temperatures may elevate ragweed pollination. According to a 2017 study, researchers are estimating ragweed sensitivities to double from 33 to 77 million people affected by 2060 due to prolonged pollination seasons (3). Global climate change could further delay frosty climates; therefore, prolonging pollen activity within certain regions depending on weather.

In Korea, invasive Japanese hop plants cause increased pollen activity and autumn allergies across the country. According to a 2013 study, consistent exposure to Japanese hop pollen particles can lead to increased hospitalization rates and allergic reactions (4). The Japanese hop follows similar growth patterns as ragweeds, producing pollen up until the first frost over in October or November.

Autumn pollination can invade homes and create poor indoor air conditions for allergies sufferers, leading to prolonged exposure and elevated health risks.

How do seasonal allergens impact health?

Seasonal allergens can cause allergy flare-ups and respiratory irritation, especially for those with pre-existing medical conditions and predisposed immune systems. According to a 2025 research study, ragweeds have been linked to asthma and allergic rhinitis. Poor ventilation can exacerbate these conditions. Health risks associated with seasonal allergens can range from allergy-based inflammation to feverish symptoms, such as (5):

Hay fever
Sinus infections
Asthmatic flare-ups
Allergy symptoms
Respiratory complications

As cool rainy climates increase during autumn, excessive indoor moisture and mold spores can also be common within poorly ventilated spaces. Numerous studies have linked long-term mold spore exposure to both physical and mental health complications, from increased levels of depression and anxiety to biological changes within the immune system (6). Without proper ventilation, dehumidification, or air purification, moist climates can lead to mold growth indoors, especially within dark enclosed spaces such as closets, cabinets, and furniture.

How to reduce exposure to autumn allergens

In conjunction with active ventilation, advanced multistage air purification can help prevent airborne pollutants and allergies from circulating indoors. HyperHEPA ultrafine filtration provides the most optimal purification support, capturing 99.5% of airborne pollutants down to 0.003 microns in size. Room air purifiers specifically target seasonal pollutants and trap a wide range of microscopic particles, such as:

Pollen
Wildfire smoke
Mold spores
Dust
Bacteria
Viruses
\nPM2.5, particulate matter less than 2.5 microns in diameter
\nPM10, particulate matter less than 10 microns in diameter

HVAC air purifiers can provide comprehensive whole house air quality protection. HVAC air purifiers utilize existing heating, ventilation and air conditioning systems to remove ultrafine particles from indoor air.

Air purifiers can be valuable tools for managing seasonal allergies and indoor mold spores. Air purification systems can be paired either with indoor air quality monitoring to determine how clean the air in a room is in real-time.

Tips for a pollutant-free autumn

Air purification devices and active ventilation are key for reducing pollutants, but air quality monitoring and source control can prevent unhealthy exposure from occurring at all. By being mindful of seasonal climate changes and monitoring pollutants, ventilation practices can be performed optimally and produce positive air quality changes. To limit pollen and mold exposures indoors, daily clean air methods can have immense impact alongside air purification, such as:

\nPollutant source control: Avoid scented chemical cleaning aerosols, limit humidifier utilization during moist weather conditions, and routinely disinfect commonly used surfaces and enclosed spaces. Because allergens may be brought in from outdoors, leave shoes by the door and consider changing clothes when coming inside (8).
\nActive ventilation: Open windows to prevent indoor moisture buildup, utilize fans to increase airflow between rooms, and employ an HVAC-based air purifier for dual ventilation and filtration action.
\nAir quality awareness: Close windows during air quality events, utilize multistage HyperHEPA air purifiers for maximized filtration, and employ indoor and outdoor air quality monitors to track pollutant activity.

Seasonal allergies and rainy climates do not have to overwhelm indoor spaces. Advanced air purification in conjunction with clean air methods can create healthy breathing spaces and protect personal health from irritable allergies.

Conclusion

Seasonal changes bring different air quality events and airborne pollutants that can invade homes and impact health through prolonged exposure. But with the proper ventilation practices, dehumidification, and advanced air purification, airborne pollutants do not have to overwhelm personal health symptoms. Ultrafine air purification and localized air monitoring can help filtrate unhealthy pollutants, supporting allergy and respiratory symptom relief.

Employing air quality monitoring and ultrafine filtration this autumn can help ensure at-home autumn festivities and quality family moments go uninterrupted.

","autumn-allergens-and-ventilation-influence-indoor-air-quality-levels","gid://shopify/Article/642395766862","https://shop.iqair.cn/en/blogs/news/autumn-allergens-and-ventilation-influence-indoor-air-quality-levels","2026-10-05T15:38:50Z",[637,821,14,822],"How to protect yourself from autumn allergens in your home",{"_50":818,"_212":819,"_210":820,"_213":584,"_215":585},"gid://shopify/ArticleImage/275455148110","Man using nasal spray near an open window in autumn.","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/Article_SeasonalTipsAutumnAllergens_Desk_49fecf0c-1f09-4848-b43d-b8397c3d9981.jpg?v=1791214731","Allergies and Asthma","Molds",{"_52":502},{"_63":61},"Living near busy roads can affect the air inside your home. Learn how traffic pollution gets indoors and whether air purifiers can help reduce your exposure.","

Living near busy roads can affect the air inside your home. Learn how traffic pollution gets indoors and whether air purifiers can help reduce your exposure.

","Yes, air purifiers can help reduce indoor exposure to traffic-related pollution, though how well they work depends on the type of filtration used, how the purifier is sized for the space, and a few complementary habits like keeping windows closed during peak traffic hours. Traffic pollution isn't confined to the outdoors. Homes near busy roads regularly experience elevated indoor concentrations of vehicle-related pollutants, particularly in buildings without adequate filtration or sealing (1). Understanding what traffic pollution contains, how it makes its way indoors, and what an air purifier can and can't do about it helps homeowners near high-traffic areas make more informed decisions about protecting their indoor air. How does traffic pollution affect indoor air quality? Outdoor pollutants generated by vehicle traffic can enter homes in several ways, most commonly through open windows and doors, HVAC intake systems, and small gaps or cracks in a building's walls and window seals (2). The U.S. Environmental Protection Agency has found that pollutant concentrations near major roadways are generally elevated compared to background levels, with the highest concentrations typically occurring within roughly 500 to 1,000 feet of heavy-traffic roads. Beyond that range, concentrations tend to decrease, though the rate depends on wind patterns, terrain, building density, and traffic volume. Indoor pollutant levels near busy roads often follow outdoor traffic patterns, with concentrations rising during morning and evening rush hours and tapering off as traffic and wind activity change throughout the day. Because ventilation and building tightness vary widely from home to home, some households near roadways experience a closer link between outdoor and indoor pollutant levels than others. What pollutants come from traffic exhaust? Traffic-related air pollution isn't a single pollutant, it's a mixture of several particle types and gases, each with different health implications and different filtration requirements: PM2.5 and PM10: Fine and coarse particulate matter from combustion, as well as tire and brake wear Ultrafine particles (UFPs): Particles 0.1 microns or smaller, small enough to penetrate deep into the lungs and bloodstream Black carbon: Soot generated primarily by diesel engines and other combustion sources Nitrogen dioxide (NO2): A gas pollutant that particulate filters alone cannot capture Volatile organic compounds (VOCs): Gaseous compounds released during fuel combustion Exposure to this mixture has been linked to a range of health effects. A study of residents in Guangzhou found that proximity to busy roads was an independent risk factor for chronic obstructive pulmonary disease (COPD), with higher detection rates among those living or spending time closest to major roads (3). Research on near-highway populations has also linked traffic pollution exposure to cardiovascular disease and, in some studies, cognitive outcomes such as Alzheimer's and Parkinson's disease risk factors (4). How close to traffic is considered high risk for indoor air quality? The EPA's near-roadway guidance places the zone of elevated pollutant concentrations within roughly 500 to 1,000 feet of heavy-traffic roads. The Guangzhou COPD study found that residents whose outdoor activities occurred within 50 meters, and 50 to 199 meters, of busy roads had meaningfully higher odds of COPD compared to those more than 200 meters away. Homes within these distances tend to show elevated indoor PM2.5, NO2, and black carbon levels compared to homes farther from roadways, since outdoor-sourced pollutants infiltrate more readily the closer a home sits to the source (5). Can air purifiers filter out traffic-related pollutants? Particulate matter, PM2.5, PM10, black carbon, and ultrafine particles, can be captured through HEPA or HyperHEPA filtration. Gases like NO2 and VOCs, however, require activated carbon or another gas-phase filtration method, since particulate filters are not designed to capture gas molecules. For an air purifier to meaningfully address traffic-related pollution, it generally needs both particulate and gas-phase filtration working together. Research supports this combined approach. A study on portable HEPA purifiers found removal efficiencies for traffic-related combustion particles reaching up to 57% for PM2.5, 34% for PM10, 70% for PM1, and 58% for black carbon, depending on the air purification technology used (6). In a real-world study of low-income homes in Lowell, Massachusetts, HEPA/carbon filter air purifiers reduced indoor NO2 concentrations by 36% on average, alongside measurable PM2.5 reductions (7), a useful demonstration that combined filtration can meaningfully lower both gas and particulate pollutants tied to combustion sources like traffic and gas appliances. A randomized crossover trial of air purifiers in homes near a major highway also found that nearly all 150 participants ran their purifiers close to 24 hours a day in both their living rooms and bedrooms, reflecting how seriously near-highway residents treated continuous filtration as part of managing their exposure (8). What features matter most in an air purifier for traffic pollution? A few features make the biggest difference for homes dealing with traffic-related pollution: HyperHEPA or True HEPA filtration to capture ultrafine particles and black carbon Activated carbon or gas-phase filtration to address NO2 and VOCs, since standard HEPA filtration alone won't remove gases A high Cumulative Clean Mass (CCM) rating. Rather than relying primarily on Clean Air Delivery Rate (CADR), which measures how quickly a purifier can filter air in the short term, CCM (rated in P1–P4 or F1–F4 tiers) reflects how much pollutant mass a filter can capture over time before losing efficiency. This is especially relevant for homes near busy roads, where continuous pollutant exposure can load up filters faster than in lower-traffic environments Continuous or near-continuous operation, consistent with how residents in near-highway trials actually used their purifiers Traffic pollution exposure isn't limited to time spent at home, either. Commuters are directly exposed to tailpipe emissions and traffic-related pollutants while driving, often in an enclosed cabin with limited air exchange. A portable air purifier, such as the Atem Car, extends filtration into the vehicle, helping address this additional exposure window during daily commutes near the same traffic sources affecting the home. Where should you place an air purifier in a home near a busy road? Position air purifiers in the rooms where household members spend the most time, typically bedrooms and living areas, placing them a few feet from exterior walls and windows rather than directly beside them, so airflow isn't restricted and outdoor-sourced pollutants are captured before spreading through the room. Keep windows closed during rush hour (typically early morning and early evening) and other peak-traffic periods. Once traffic eases, for example, around midday or late evening, outdoor pollutant levels are more likely to have dropped, making it a better time to open windows and ventilate. If the home has an attached garage, avoid placing a purifier directly next to the garage entry point, idling vehicles and exhaust can introduce a concentrated, secondary source of pollutants into that part of the home. What else can you do to reduce indoor exposure to traffic pollution? Indoor air quality is shaped by a combination of pollutant sources, ventilation, and filtration, so filtration works best as part of a broader approach (9): Seal gaps and cracks around windows, doors, and building foundations to reduce pollutant infiltration Time ventilation to lower-traffic hours rather than rush periods Use an air quality monitor to track indoor PM2.5 and NO2 trends and identify when levels spike Consider vegetation or green infrastructure as a supplementary outdoor barrier. Green infrastructure can reduce nearby concentrations of PM10, NO2, ozone, black carbon, and particle number counts, though this addresses outdoor levels rather than replacing indoor filtration Conclusion Traffic pollution can meaningfully affect indoor air quality in homes located near busy roads, introducing a mixture of particulate matter and gases, including PM2.5, ultrafine particles, black carbon, and NO2, that infiltrate indoor spaces through windows, doors, and building gaps. Air purifiers that combine HyperHEPA or True HEPA filtration with activated carbon, sized appropriately and run consistently, can help reduce this exposure, particularly when paired with smart ventilation timing and indoor air quality monitoring. Since traffic exposure often continues beyond the home during daily commutes, a portable option like the Atem Car can extend that same protection into the vehicle, addressing exposure across the full daily routine. Frequently Asked Questions Do air purifiers remove NO2 from traffic? Not on their own if they rely solely on HEPA filtration. NO2 is a gas, and standard particulate filters aren't designed to capture it. An air purifier needs activated carbon or another gas-phase filtration layer to meaningfully reduce NO2 alongside particulate matter. How do I know if my home has an indoor traffic pollution problem? Homes within roughly 500 to 1,000 feet of heavy-traffic roads are more likely to experience elevated indoor pollutant levels. An indoor air quality monitor can help confirm whether PM2.5 or NO2 levels are elevated in your specific home. Can I use an air purifier instead of closing my windows during rush hour? Air purifiers are most effective when paired with smart ventilation timing, not as a replacement for it. Keeping windows closed during peak traffic hours and running a purifier continuously offers stronger protection than either approach alone. Is traffic pollution worse indoors or outdoors? Outdoor concentrations near busy roads are typically higher than indoor concentrations, since some filtration occurs naturally through walls and building materials. However, indoor levels in near-road homes can still reach a meaningful share of outdoor levels, particularly in older or less airtight homes.","

Yes, air purifiers can help reduce indoor exposure to traffic-related pollution, though how well they work depends on the type of filtration used, how the purifier is sized for the space, and a few complementary habits like keeping windows closed during peak traffic hours.

Traffic pollution isn't confined to the outdoors. Homes near busy roads regularly experience elevated indoor concentrations of vehicle-related pollutants, particularly in buildings without adequate filtration or sealing (1). Understanding what traffic pollution contains, how it makes its way indoors, and what an air purifier can and can't do about it helps homeowners near high-traffic areas make more informed decisions about protecting their indoor air.

How does traffic pollution affect indoor air quality?

Outdoor pollutants generated by vehicle traffic can enter homes in several ways, most commonly through open windows and doors, HVAC intake systems, and small gaps or cracks in a building's walls and window seals (2). The U.S. Environmental Protection Agency has found that pollutant concentrations near major roadways are generally elevated compared to background levels, with the highest concentrations typically occurring within roughly 500 to 1,000 feet of heavy-traffic roads. Beyond that range, concentrations tend to decrease, though the rate depends on wind patterns, terrain, building density, and traffic volume.

Indoor pollutant levels near busy roads often follow outdoor traffic patterns, with concentrations rising during morning and evening rush hours and tapering off as traffic and wind activity change throughout the day. Because ventilation and building tightness vary widely from home to home, some households near roadways experience a closer link between outdoor and indoor pollutant levels than others.

What pollutants come from traffic exhaust?

Traffic-related air pollution isn't a single pollutant, it's a mixture of several particle types and gases, each with different health implications and different filtration requirements:

\nPM2.5 and PM10: Fine and coarse particulate matter from combustion, as well as tire and brake wear
\nUltrafine particles (UFPs): Particles 0.1 microns or smaller, small enough to penetrate deep into the lungs and bloodstream
\nBlack carbon: Soot generated primarily by diesel engines and other combustion sources
\nNitrogen dioxide (NO2): A gas pollutant that particulate filters alone cannot capture
\nVolatile organic compounds (VOCs): Gaseous compounds released during fuel combustion

Exposure to this mixture has been linked to a range of health effects. A study of residents in Guangzhou found that proximity to busy roads was an independent risk factor for chronic obstructive pulmonary disease (COPD), with higher detection rates among those living or spending time closest to major roads (3). Research on near-highway populations has also linked traffic pollution exposure to cardiovascular disease and, in some studies, cognitive outcomes such as Alzheimer's and Parkinson's disease risk factors (4).

How close to traffic is considered high risk for indoor air quality?

The EPA's near-roadway guidance places the zone of elevated pollutant concentrations within roughly 500 to 1,000 feet of heavy-traffic roads. The Guangzhou COPD study found that residents whose outdoor activities occurred within 50 meters, and 50 to 199 meters, of busy roads had meaningfully higher odds of COPD compared to those more than 200 meters away. Homes within these distances tend to show elevated indoor PM2.5, NO2, and black carbon levels compared to homes farther from roadways, since outdoor-sourced pollutants infiltrate more readily the closer a home sits to the source (5).

Can air purifiers filter out traffic-related pollutants?

Particulate matter, PM2.5, PM10, black carbon, and ultrafine particles, can be captured through HEPA or HyperHEPA filtration. Gases like NO2 and VOCs, however, require activated carbon or another gas-phase filtration method, since particulate filters are not designed to capture gas molecules. For an air purifier to meaningfully address traffic-related pollution, it generally needs both particulate and gas-phase filtration working together.

Research supports this combined approach. A study on portable HEPA purifiers found removal efficiencies for traffic-related combustion particles reaching up to 57% for PM2.5, 34% for PM10, 70% for PM1, and 58% for black carbon, depending on the air purification technology used (6). In a real-world study of low-income homes in Lowell, Massachusetts, HEPA/carbon filter air purifiers reduced indoor NO2 concentrations by 36% on average, alongside measurable PM2.5 reductions (7), a useful demonstration that combined filtration can meaningfully lower both gas and particulate pollutants tied to combustion sources like traffic and gas appliances.

A randomized crossover trial of air purifiers in homes near a major highway also found that nearly all 150 participants ran their purifiers close to 24 hours a day in both their living rooms and bedrooms, reflecting how seriously near-highway residents treated continuous filtration as part of managing their exposure (8).

What features matter most in an air purifier for traffic pollution?

A few features make the biggest difference for homes dealing with traffic-related pollution:

HyperHEPA or True HEPA filtration to capture ultrafine particles and black carbon
Activated carbon or gas-phase filtration to address NO2 and VOCs, since standard HEPA filtration alone won't remove gases
A high Cumulative Clean Mass (CCM) rating. Rather than relying primarily on Clean Air Delivery Rate (CADR), which measures how quickly a purifier can filter air in the short term, CCM (rated in P1–P4 or F1–F4 tiers) reflects how much pollutant mass a filter can capture over time before losing efficiency. This is especially relevant for homes near busy roads, where continuous pollutant exposure can load up filters faster than in lower-traffic environments
Continuous or near-continuous operation, consistent with how residents in near-highway trials actually used their purifiers

Traffic pollution exposure isn't limited to time spent at home, either. Commuters are directly exposed to tailpipe emissions and traffic-related pollutants while driving, often in an enclosed cabin with limited air exchange. A portable air purifier, such as the Atem Car, extends filtration into the vehicle, helping address this additional exposure window during daily commutes near the same traffic sources affecting the home.

Where should you place an air purifier in a home near a busy road?

Position air purifiers in the rooms where household members spend the most time, typically bedrooms and living areas, placing them a few feet from exterior walls and windows rather than directly beside them, so airflow isn't restricted and outdoor-sourced pollutants are captured before spreading through the room.

Keep windows closed during rush hour (typically early morning and early evening) and other peak-traffic periods. Once traffic eases, for example, around midday or late evening, outdoor pollutant levels are more likely to have dropped, making it a better time to open windows and ventilate. If the home has an attached garage, avoid placing a purifier directly next to the garage entry point, idling vehicles and exhaust can introduce a concentrated, secondary source of pollutants into that part of the home.

What else can you do to reduce indoor exposure to traffic pollution?

Indoor air quality is shaped by a combination of pollutant sources, ventilation, and filtration, so filtration works best as part of a broader approach (9):

Seal gaps and cracks around windows, doors, and building foundations to reduce pollutant infiltration
\n
Time ventilation to lower-traffic hours rather than rush periods
\n
Use an air quality monitor to track indoor PM2.5 and NO2 trends and identify when levels spike
\n
Consider vegetation or green infrastructure as a supplementary outdoor barrier. Green infrastructure can reduce nearby concentrations of PM10, NO2, ozone, black carbon, and particle number counts, though this addresses outdoor levels rather than replacing indoor filtration
\n

Conclusion

Traffic pollution can meaningfully affect indoor air quality in homes located near busy roads, introducing a mixture of particulate matter and gases, including PM2.5, ultrafine particles, black carbon, and NO2, that infiltrate indoor spaces through windows, doors, and building gaps. Air purifiers that combine HyperHEPA or True HEPA filtration with activated carbon, sized appropriately and run consistently, can help reduce this exposure, particularly when paired with smart ventilation timing and indoor air quality monitoring. Since traffic exposure often continues beyond the home during daily commutes, a portable option like the Atem Car can extend that same protection into the vehicle, addressing exposure across the full daily routine.

Frequently Asked Questions

Do air purifiers remove NO2 from traffic?

Not on their own if they rely solely on HEPA filtration. NO2 is a gas, and standard particulate filters aren't designed to capture it. An air purifier needs activated carbon or another gas-phase filtration layer to meaningfully reduce NO2 alongside particulate matter.

How do I know if my home has an indoor traffic pollution problem?

Homes within roughly 500 to 1,000 feet of heavy-traffic roads are more likely to experience elevated indoor pollutant levels. An indoor air quality monitor can help confirm whether PM2.5 or NO2 levels are elevated in your specific home.

Can I use an air purifier instead of closing my windows during rush hour?

Air purifiers are most effective when paired with smart ventilation timing, not as a replacement for it. Keeping windows closed during peak traffic hours and running a purifier continuously offers stronger protection than either approach alone.

Is traffic pollution worse indoors or outdoors?

Outdoor concentrations near busy roads are typically higher than indoor concentrations, since some filtration occurs naturally through walls and building materials. However, indoor levels in near-road homes can still reach a meaningful share of outdoor levels, particularly in older or less airtight homes.

","can-air-purifiers-help-with-indoor-air-quality-from-traffic-pollution","gid://shopify/Article/642421391438","https://shop.iqair.cn/en/blogs/news/can-air-purifiers-help-with-indoor-air-quality-from-traffic-pollution","2026-10-06T16:27:14Z",[637,14,605],"Can air purifiers help with indoor air quality from traffic pollution?",{"_50":836,"_212":-5,"_210":837,"_213":584,"_215":585},"gid://shopify/ArticleImage/275468419150","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/article_CarPollutionIndoors_3f7c7a1c-526e-4d04-b753-b53582c03a90.jpg?v=1791307761",{"_52":502},{"_63":61},"Studies show regional air quality levels impact breast cancer risks. Learn how traffic emissions and airborne pollutants can play a role in cancer development.","

Studies show regional air quality levels impact breast cancer risks. Learn how traffic emissions and airborne pollutants can play a role in cancer development.

","Breast cancer is the most commonly diagnosed cancer among women worldwide. While it's usually treated as a disease of genetics and lifestyle, eighty percent of breast cancer cases can't be explained by family history, age, or lifestyle (1)(2). A growing body of research points to another factor: air quality. The air a woman breathes can shape that risk years before any diagnosis is made. In recent years, a number of research studies have linked long-term exposure to fine particulate matter (PM2.5) and nitrogen dioxide (NO2) to an increased risk of breast cancer. These findings have drawn attention to the potential role of air pollution as an environmental risk factor in breast cancer development. Because exposure to these pollutants can occur in everyday settings, understanding their long-term health effects is an important step toward identifying opportunities for prevention. How researchers linked air pollution with breast cancer Over time, breast cancer and air pollution research has grown to include larger participant pools, differing community environments, and specific analysis of airborne pollutant particles. In 2023, researchers at the National Institutes of Health (NIH), a U.S. government agency responsible for biomedical and public health research, found that women living in areas with higher historical PM2.5 concentrations had an 8% increase in breast cancer incidence for every 10 µg/m³ of long-term pollutant exposure (3). The study included one of the largest participant pools for cancer research to date, following 500,000 men and women across the United States. Participants received questionnaires over the course of 20 years, during which 15,870 breast cancer cases were identified. In cities, traffic emissions are one of the biggest contributors to outdoor air pollution. A 2025 research project combining five large U.S. breast cancer studies found that a 10-parts-per-billion increase in NO2, a proxy for vehicle emissions, corresponded to a 3% increase in overall breast cancer incidence. Set against the roughly 316,950 U.S. breast cancer cases expected each year, that increase would account for about 9,500 cases (4). The association between long-term air pollution exposure and breast cancer incidence has also been consistently reported across studies conducted outside the U.S. A 2026 research study observed nearly 100,000 French women through a series of questionnaires over the course of 21 years and identified 5,222 cases of breast cancer. The research analyzed annual PM2.5 and PM10 levels within participant’s regions, linking increased local air pollution to elevated risk rates for breast cancer (5). How can airborne pollutants influence breast tissue and health? Cancer begins with genetic changes and cell signaling gone wrong. Airborne pollutants can contribute to both (6). Fine particulate matter is small enough to be inhaled deep into the lungs, where its chemical cargo of carcinogens, metals, and microplastics can pass into the bloodstream. Inhaled toxicants have been measured in breast fluid – evidence that these compounds physically reach breast tissue and directly impact cell systems (7). The most common outdoor pollutants include: Diesel exhaust Arsenic Nickel Nitrogen dioxide (NO2) Polycyclic aromatic hydrocarbons (PAHs) Volatile organic compounds (VOCs) PM2.5, particulates measuring 2.5 microns in diameter or smaller PM10, particulates measuring 10 microns in diameter or smaller Once inhaled, these pollutants can disrupt several cellular processes at once, including DNA integrity and hormone signaling. PAHs can bind directly to DNA and form adducts, initiating genetic damage that can start a cell down the path toward cancer. Many of the same pollutants mimic or interfere with estrogen, the hormone that drives the growth of most breast tumors (8). Inflammation plays a role as well. Pollutants drive systemic inflammation and oxidative stress, conditions that damage cells and make tissue more hospitable to tumors (9). Long-term exposure can increase breast cancer risks over time through sustained inflammation and repeated inhalation of pollutants that enter the bloodstream. Where is the risk most visible? The risk does not fall evenly across communities or global environments. Cancer cases often concentrate where traffic, industry, and housing overlap. In a 2025 multiethnic study, which followed more than 58,000 California women for an average of 19 years, satellite-based PM2.5 estimates were associated with a 28% increase in breast cancer incidence per 10 µg/m³ increase (10). African American and Latino participants in the study were at the highest risk for breast cancer. In a 2023 study performed in Denmark, researchers analyzed 55,745 of the nation’s breast cancer cases against annual PM2.5 and NO2 levels in the region. Although the study measured a connection between breast cancer and both types of airborne pollutants, researchers found the strongest risk association to be with atmospheric PM2.5 particles (11). Breast cancer rates vary globally. In a 2024 study performed in Beijing, researchers found a connection between breast cancer cases and regional black carbon exposure from coal burning pollution (12). Breast cancer incidence is rising fastest in low- and middle-income countries, where pollution levels are elevated and air quality regulation is limited. How to promote air quality and breast cancer protection Reducing the risk of pollution-related breast cancer requires action on two levels: individual measures to reduce exposure at home and government policies and regulations to control pollution at its source. What individuals and families can do Households and individuals can cut their own exposure and build community awareness through daily lifestyle choices. A few habits can make the biggest difference: Check local air quality forecasts daily and plan outdoor activities around pollution peaks. Monitor PM2.5 levels inside the home with indoor air quality monitors. Wear masks and use air purifiers during high-pollution days and wildfire smoke events for ultrafine particle protection. Keep windows closed when outdoor air quality is poor and consider upgrading filtration in home air conditioning systems in regions with high concentrations of air pollution. Avoid exercising near high-traffic roads, where NO2 and ultrafine particle concentrations spike. Support cleaner air policies in your community. Keep up regular breast cancer screening, as early detection can improve treatment outcomes. What communities and governments can do The largest impact can be made by governments, health organizations, and community leaders, who can reduce pollution-related breast cancer risk. Several policy choices can help: Enact and enforce stricter air quality standards for PM2.5, NO2, and other pollutants. Invest in public transportation and electric vehicle infrastructure to cut traffic emissions. Create buffer zones between residential areas and high-emission industrial or traffic corridors. Fund continued research into environmental risk factors for breast cancer. Expand access to air quality monitoring networks in underserved communities. Support public health campaigns that educate residents about pollution and cancer risk. Integrate air quality considerations into urban planning and public health policy. Conclusion As awareness of the potential health risks of air pollution grow, individual actions to reduce exposure can help protect women’s health and support breast cancer prevention efforts. Each October, Breast Cancer Awareness Month brings people together to raise awareness, promote early detection, and support those affected by the disease. Although breast cancer has no single cause and genetic factors cannot be changed, reducing exposure to air pollution is one potentially modifiable environmental measure that may help protect women’s health over the long term.","

Breast cancer is the most commonly diagnosed cancer among women worldwide.

While it's usually treated as a disease of genetics and lifestyle, eighty percent of breast cancer cases can't be explained by family history, age, or lifestyle (1)(2). A growing body of research points to another factor: air quality. The air a woman breathes can shape that risk years before any diagnosis is made.

In recent years, a number of research studies have linked long-term exposure to fine particulate matter (PM2.5) and nitrogen dioxide (NO₂) to an increased risk of breast cancer. These findings have drawn attention to the potential role of air pollution as an environmental risk factor in breast cancer development. Because exposure to these pollutants can occur in everyday settings, understanding their long-term health effects is an important step toward identifying opportunities for prevention.

How researchers linked air pollution with breast cancer

Over time, breast cancer and air pollution research has grown to include larger participant pools, differing community environments, and specific analysis of airborne pollutant particles.

In 2023, researchers at the National Institutes of Health (NIH), a U.S. government agency responsible for biomedical and public health research, found that women living in areas with higher historical PM2.5 concentrations had an 8% increase in breast cancer incidence for every 10 µg/m³ of long-term pollutant exposure (3). The study included one of the largest participant pools for cancer research to date, following 500,000 men and women across the United States. Participants received questionnaires over the course of 20 years, during which 15,870 breast cancer cases were identified.

In cities, traffic emissions are one of the biggest contributors to outdoor air pollution. A 2025 research project combining five large U.S. breast cancer studies found that a 10-parts-per-billion increase in NO2, a proxy for vehicle emissions, corresponded to a 3% increase in overall breast cancer incidence. Set against the roughly 316,950 U.S. breast cancer cases expected each year, that increase would account for about 9,500 cases (4).

The association between long-term air pollution exposure and breast cancer incidence has also been consistently reported across studies conducted outside the U.S. A 2026 research study observed nearly 100,000 French women through a series of questionnaires over the course of 21 years and identified 5,222 cases of breast cancer. The research analyzed annual PM2.5 and PM10 levels within participant’s regions, linking increased local air pollution to elevated risk rates for breast cancer (5).

How can airborne pollutants influence breast tissue and health?

Cancer begins with genetic changes and cell signaling gone wrong. Airborne pollutants can contribute to both (6).

Fine particulate matter is small enough to be inhaled deep into the lungs, where its chemical cargo of carcinogens, metals, and microplastics can pass into the bloodstream. Inhaled toxicants have been measured in breast fluid – evidence that these compounds physically reach breast tissue and directly impact cell systems (7).

The most common outdoor pollutants include:

Diesel exhaust
Arsenic
Nickel
Nitrogen dioxide (NO2)
Polycyclic aromatic hydrocarbons (PAHs)
Volatile organic compounds (VOCs)
\nPM2.5, particulates measuring 2.5 microns in diameter or smaller
\nPM10, particulates measuring 10 microns in diameter or smaller

Once inhaled, these pollutants can disrupt several cellular processes at once, including DNA integrity and hormone signaling. PAHs can bind directly to DNA and form adducts, initiating genetic damage that can start a cell down the path toward cancer. Many of the same pollutants mimic or interfere with estrogen, the hormone that drives the growth of most breast tumors (8).

Inflammation plays a role as well. Pollutants drive systemic inflammation and oxidative stress, conditions that damage cells and make tissue more hospitable to tumors (9). Long-term exposure can increase breast cancer risks over time through sustained inflammation and repeated inhalation of pollutants that enter the bloodstream.

Where is the risk most visible?

The risk does not fall evenly across communities or global environments. Cancer cases often concentrate where traffic, industry, and housing overlap.

In a 2025 multiethnic study, which followed more than 58,000 California women for an average of 19 years, satellite-based PM2.5 estimates were associated with a 28% increase in breast cancer incidence per 10 µg/m³ increase (10). African American and Latino participants in the study were at the highest risk for breast cancer.

In a 2023 study performed in Denmark, researchers analyzed 55,745 of the nation’s breast cancer cases against annual PM2.5 and NO2 levels in the region. Although the study measured a connection between breast cancer and both types of airborne pollutants, researchers found the strongest risk association to be with atmospheric PM2.5 particles (11).

Breast cancer rates vary globally. In a 2024 study performed in Beijing, researchers found a connection between breast cancer cases and regional black carbon exposure from coal burning pollution (12). Breast cancer incidence is rising fastest in low- and middle-income countries, where pollution levels are elevated and air quality regulation is limited.

How to promote air quality and breast cancer protection

Reducing the risk of pollution-related breast cancer requires action on two levels: individual measures to reduce exposure at home and government policies and regulations to control pollution at its source.

What individuals and families can do

Households and individuals can cut their own exposure and build community awareness through daily lifestyle choices. A few habits can make the biggest difference:

Check local air quality forecasts daily and plan outdoor activities around pollution peaks.
Monitor PM2.5 levels inside the home with indoor air quality monitors.
Wear masks and use air purifiers during high-pollution days and wildfire smoke events for ultrafine particle protection.
Keep windows closed when outdoor air quality is poor and consider upgrading filtration in home air conditioning systems in regions with high concentrations of air pollution.
Avoid exercising near high-traffic roads, where NO2 and ultrafine particle concentrations spike.
Support cleaner air policies in your community.
Keep up regular breast cancer screening, as early detection can improve treatment outcomes.

What communities and governments can do

The largest impact can be made by governments, health organizations, and community leaders, who can reduce pollution-related breast cancer risk. Several policy choices can help:

Enact and enforce stricter air quality standards for PM2.5, NO2, and other pollutants.
Invest in public transportation and electric vehicle infrastructure to cut traffic emissions.
Create buffer zones between residential areas and high-emission industrial or traffic corridors.
Fund continued research into environmental risk factors for breast cancer.
Expand access to air quality monitoring networks in underserved communities.
Support public health campaigns that educate residents about pollution and cancer risk.
Integrate air quality considerations into urban planning and public health policy.

Conclusion

As awareness of the potential health risks of air pollution grow, individual actions to reduce exposure can help protect women’s health and support breast cancer prevention efforts.

Each October, Breast Cancer Awareness Month brings people together to raise awareness, promote early detection, and support those affected by the disease.

Although breast cancer has no single cause and genetic factors cannot be changed, reducing exposure to air pollution is one potentially modifiable environmental measure that may help protect women’s health over the long term.

","how-air-quality-affects-breast-cancer","gid://shopify/Article/642526281806","https://shop.iqair.cn/en/blogs/news/how-air-quality-affects-breast-cancer","2026-10-21T12:00:05Z",[503,14,605],"How air quality affects breast cancer",{"_50":851,"_212":-5,"_210":852,"_213":853,"_215":854},"gid://shopify/ArticleImage/275524812878","https://cdn.shopify.com/s/files/1/0018/4411/7571/articles/BC_AQ_Desktop_NEW.jpg?v=1792016555",1748,1404,{"_52":502},{"_63":61},"Children across the globe are experiencing unhealthy air quality levels. Learn more about the health risks and learning barriers linked to indoor and outdoor air pollution.","

Children across the globe are experiencing unhealthy air quality levels. Learn more about the health risks and learning barriers linked to indoor and outdoor air pollution.

","Every day, millions of children breathe air that can impact their health, development, and ability to learn. According to the World Health Organization (WHO), approximately 93% of children under age 15 were exposed to air pollution levels above its air quality guidelines in data reported in 2018 (1). This exposure can affect lung development, respiratory health, and cognitive ability during critical stages of childhood. Children are especially vulnerable to air pollution because their lungs and brains are still developing. From busy roads and industrial emissions to secondhand smoke inside homes and classrooms, air pollution can follow children throughout the day, affecting their health and well-being. Understanding where pollution comes from, how it affects children, and what families and educators can do to reduce exposure can lead to healthier childhoods. How air quality affects child health Clean air is critical for healthy childhood development. When children breathe polluted air, they may inhale fine particles and gases that irritate their respiratory systems, trigger inflammation, and contribute to both immediate and long-term health problems. The WHO has linked air pollution exposure in children to respiratory infections, asthma, impaired lung development, adverse effects on brain development, and other health outcomes. The severity of these effects depends on factors such as the type and concentration of pollutants, the duration of exposure, and a child's health and developmental stage (2). Cognitive and mental developmentBrain development is especially active during childhood as children begin to form basic learning structures and building blocks. Researchers and scientists increasingly associate exposure to air pollution with shifts in children's cognitive and neurological development. A 2016 study found heightened neuroinflammation when children experienced air pollution exposure, causing damage to neural tissue and reduced blood flow. Researchers in the study also discovered the presence of protein characteristics related to Alzheimer’s disease in children with high pollutant exposure levels (3). Air quality also influences children's concentration and school performance. A 2024 University of Southern California study linked regional air pollution to poor memory and learning performance in 9- and 10-year-olds (4). Most of the child participants in the study experienced pollutant exposure from agricultural emissions and ultrafine particulate matter, such as PM2.5. Lung and respiratory healthChildren's lungs continue developing throughout childhood and adolescence, making them particularly susceptible to airborne irritants and fine particulate matter. Airborne pollutants can have adverse respiratory effects ranging from short-term symptoms to long-term chronic risks. A 2023 research study found that children experiencing prolonged pollutant exposure can have heightened risks for asthma and pneumonia (5). The study also highlighted reduced lung functions and decreased respiratory growth, which can be especially impactful for children with pre-existing medical conditions or allergen sensitivities. Repeated exposure during childhood can affect healthy lung development, making the prevention of avoidable exposure especially pivotal. Heart health and general developmentAlthough respiratory effects are among the most recognizable consequences of air pollution, its effects are not limited to the lungs. Fine particles can contribute to inflammation and other processes that cause cardiovascular problems, hospital visits, and missed school days. Air pollution affects more than just the lungs or cognitive development. Recent studies have linked long-term air pollution with elevated blood pressure in children. Childhood high blood pressure is a risk factor for hypertension and heart disease in adulthood (6). According to the European Environmental Agency, children can also be more susceptible to regional air pollution, causing an increase in hospitalizations and emergency room visits from short-term exposures (7). These increased hospital visits can be caused by exacerbated allergen symptoms or concentration difficulties from lingering airborne pollutants. How kids are exposed to air pollution Air pollution is often associated with outdoor smog, busy roads, and industrial emissions. However, exposure does not end when children walk through the front door of their homes or enter their classrooms. Outdoor pollution entering indoor spacesChildren attending schools near highways, busy roads, industrial areas, or wildfire-prone regions may experience elevated exposure to airborne particles and gases. Vehicle exhaust and construction activity can contribute to outdoor pollution that subsequently enters indoor spaces through open vents, doors, and windows. Schools located in different environments may face different challenges. Schools built near major roadways are exposed to traffic-related pollution, while schools in regions affected by seasonal wildfires need to plan for smoke events. Without appropriate precautions, these pollutants can enter classrooms and compromise student and faculty health. Indoor pollution at home and schoolIndoor environments can contain a mixture of airborne pollutants and ultrafine particles. Dust, pollen, pet dander, mold spores, and other biological contaminants may aggravate allergies and asthma. Even children without pets in the household can be affected by cat allergens, as allergens are often carried from home to school on clothes (8). Volatile organic compounds (VOCs), which can be released by paints, adhesives, furnishings, cleaning products, and other materials, may also affect indoor air quality. Secondhand tobacco smoke is another preventable source of exposure. Children living in homes where smoking occurs face increased risks of respiratory infections, ear infections, reduced lung function, and more frequent or severe asthma symptoms. Smoke can also travel between rooms and linger on surfaces and materials, extending exposure beyond the immediate smoking area. Crowded classrooms introduce additional considerations. Respiratory viruses and airborne bacteria can spread through the air, particularly in poorly ventilated indoor spaces. Pollutants to watch for child safety Air pollution consists of different particles and gases, each with its own sources and potential health risks. Identifying the pollutants that may be present in a child's environment helps families and schools choose appropriate ways to reduce exposure. Some of the most common airborne pollutants include: Nitrogen dioxide (NO₂) Volatile organic compounds (VOCs) Secondhand smoke Mold spores Viruses and bacteria Allergens PM2.5, particulate matter measuring 2.5 microns in diameter or less PM10, particulate matter measuring 10 microns in diameter or less Many of these airborne pollutants, like PM2.5, can be microscopic or invisible to the naked eye, causing unexpected exposure for children. Air quality awareness and education for children Protecting kids from air pollution involves more than improving the air around them. Air quality education can introduce environmental health concepts in ways that suit different ages and lets children experience hands-on learning. Air quality monitoring provides a practical way to bring these lessons to life through data collection methods students can see. Indoor and outdoor air quality monitoring provides access to real-time and historical air quality information, helping students and educators observe changes in pollution levels to connect them with local environmental conditions and air pollution sources. Whether a school is in Louisiana, Cameroon, or Thailand, students with access to monitors can use air quality data to explore patterns, discuss potential pollution sources, and consider ways to reduce exposure. The Schools4Earth program supports this approach by helping schools establish outdoor air quality monitoring. Schools4Earth is an air quality program dedicated to providing accessible data and advanced air monitoring to underserved schools. Educators can receive real-time pollution information and share air quality data to engage clean air learning within their communities. The program also creates opportunities for students to contribute to a wider network of environmental monitoring and learning. By combining air quality education with real-world data, schools can help students become informed participants in environmental health. Children can learn not only how to protect themselves, but also how communities can work together to support cleaner air for everyone. More ways to protect kids from air pollution Improving children's air quality depends on action at home, at school, and across the wider community. Parents and educators can take practical steps to reduce exposure, while monitoring and filtration tools can help identify problems and support clean air decisions. What families can doChildren rely on clean air at home for safe and comfortable breathing spaces. Parents and caregivers can improve air quality at home through daily practices and monitoring, such as: Maintaining smoke-free indoor environments. Checking air quality through indoor and outdoor air monitors when planning daily activities. Utilizing ultrafine air filtration to actively clean and refresh indoor air spaces. Limiting the use of aerosol cleaning products and candles. Voicing air quality concerns and clean air education at school board meetings. Supporting clean air initiatives and local pollutant monitoring. What schools can doAs students spend hours inside classrooms, schools can take steps to create healthier schools, such as: Joining the Schools4Earth program. Checking air quality through indoor and outdoor air monitors when planning daily activities. Utilizing HVAC-based air purifiers throughout the school for dual filtration and ventilation. Developing an air quality response plan for active school days. Limiting the usage of aerosol cleaning sprays and candles in enclosed spaces. Integrating air quality and airborne pollutant activity into lesson plans and daily learning. Initiating school fundraisers or clean air campaigns to spread awareness. Joining the Clean Air School program to create tailored clean air solutions. Applying for grants. Schools in socioeconomically disadvantaged communities may qualify for assistance through The Foundation for Clean Air. When parents, educators, school administrators, and communities work together, they can reduce preventable exposure and help create healthier spaces for children to learn and grow. Conclusion Every child deserves to learn, play, and grow in an environment that supports their health. Yet air pollution remains a widespread threat, affecting children in their homes, classrooms, and communities. Because their lungs and immune systems are still developing, children are particularly vulnerable to the consequences of polluted air. The solution begins with awareness. Parents can create healthier homes and educators can improve classroom air quality through innovative filtration and monitoring devices. Air quality monitors can help communities understand local conditions, while Schools4Earth offers a way for schools to participate in monitoring and environmental education. Clean air should never be a privilege. It should be a priority. By working together, families, schools, and communities can help protect children's health today and build a healthier future for generations to come.","

Every day, millions of children breathe air that can impact their health, development, and ability to learn. According to the World Health Organization (WHO), approximately 93% of children under age 15 were exposed to air pollution levels above its air quality guidelines in data reported in 2018 (1). This exposure can affect lung development, respiratory health, and cognitive ability during critical stages of childhood.

Children are especially vulnerable to air pollution because their lungs and brains are still developing. From busy roads and industrial emissions to secondhand smoke inside homes and classrooms, air pollution can follow children throughout the day, affecting their health and well-being.

Understanding where pollution comes from, how it affects children, and what families and educators can do to reduce exposure can lead to healthier childhoods.

How air quality affects child health

Clean air is critical for healthy childhood development. When children breathe polluted air, they may inhale fine particles and gases that irritate their respiratory systems, trigger inflammation, and contribute to both immediate and long-term health problems.

The WHO has linked air pollution exposure in children to respiratory infections, asthma, impaired lung development, adverse effects on brain development, and other health outcomes. The severity of these effects depends on factors such as the type and concentration of pollutants, the duration of exposure, and a child's health and developmental stage (2).

Cognitive and mental development
Brain development is especially active during childhood as children begin to form basic learning structures and building blocks.

Researchers and scientists increasingly associate exposure to air pollution with shifts in children's cognitive and neurological development. A 2016 study found heightened neuroinflammation when children experienced air pollution exposure, causing damage to neural tissue and reduced blood flow. Researchers in the study also discovered the presence of protein characteristics related to Alzheimer’s disease in children with high pollutant exposure levels (3).

Air quality also influences children's concentration and school performance. A 2024 University of Southern California study linked regional air pollution to poor memory and learning performance in 9- and 10-year-olds (4). Most of the child participants in the study experienced pollutant exposure from agricultural emissions and ultrafine particulate matter, such as PM2.5.

Lung and respiratory health
Children's lungs continue developing throughout childhood and adolescence, making them particularly susceptible to airborne irritants and fine particulate matter.

Airborne pollutants can have adverse respiratory effects ranging from short-term symptoms to long-term chronic risks. A 2023 research study found that children experiencing prolonged pollutant exposure can have heightened risks for asthma and pneumonia (5). The study also highlighted reduced lung functions and decreased respiratory growth, which can be especially impactful for children with pre-existing medical conditions or allergen sensitivities.

Repeated exposure during childhood can affect healthy lung development, making the prevention of avoidable exposure especially pivotal.

Heart health and general development
Although respiratory effects are among the most recognizable consequences of air pollution, its effects are not limited to the lungs. Fine particles can contribute to inflammation and other processes that cause cardiovascular problems, hospital visits, and missed school days.

Air pollution affects more than just the lungs or cognitive development. Recent studies have linked long-term air pollution with elevated blood pressure in children. Childhood high blood pressure is a risk factor for hypertension and heart disease in adulthood (6).

According to the European Environmental Agency, children can also be more susceptible to regional air pollution, causing an increase in hospitalizations and emergency room visits from short-term exposures (7). These increased hospital visits can be caused by exacerbated allergen symptoms or concentration difficulties from lingering airborne pollutants.

How kids are exposed to air pollution

Air pollution is often associated with outdoor smog, busy roads, and industrial emissions. However, exposure does not end when children walk through the front door of their homes or enter their classrooms.

Outdoor pollution entering indoor spaces
Children attending schools near highways, busy roads, industrial areas, or wildfire-prone regions may experience elevated exposure to airborne particles and gases. Vehicle exhaust and construction activity can contribute to outdoor pollution that subsequently enters indoor spaces through open vents, doors, and windows.

Schools located in different environments may face different challenges. Schools built near major roadways are exposed to traffic-related pollution, while schools in regions affected by seasonal wildfires need to plan for smoke events. Without appropriate precautions, these pollutants can enter classrooms and compromise student and faculty health.

Indoor pollution at home and school
Indoor environments can contain a mixture of airborne pollutants and ultrafine particles. Dust, pollen, pet dander, mold spores, and other biological contaminants may aggravate allergies and asthma. Even children without pets in the household can be affected by cat allergens, as allergens are often carried from home to school on clothes (8).

Volatile organic compounds (VOCs), which can be released by paints, adhesives, furnishings, cleaning products, and other materials, may also affect indoor air quality.

Secondhand tobacco smoke is another preventable source of exposure. Children living in homes where smoking occurs face increased risks of respiratory infections, ear infections, reduced lung function, and more frequent or severe asthma symptoms. Smoke can also travel between rooms and linger on surfaces and materials, extending exposure beyond the immediate smoking area.

Crowded classrooms introduce additional considerations. Respiratory viruses and airborne bacteria can spread through the air, particularly in poorly ventilated indoor spaces.

Pollutants to watch for child safety

Air pollution consists of different particles and gases, each with its own sources and potential health risks. Identifying the pollutants that may be present in a child's environment helps families and schools choose appropriate ways to reduce exposure.

Some of the most common airborne pollutants include:

Nitrogen dioxide (NO₂)
Volatile organic compounds (VOCs)
Secondhand smoke
Mold spores
Viruses and bacteria
Allergens
\nPM2.5, particulate matter measuring 2.5 microns in diameter or less
\nPM10, particulate matter measuring 10 microns in diameter or less

Many of these airborne pollutants, like PM2.5, can be microscopic or invisible to the naked eye, causing unexpected exposure for children.

Air quality awareness and education for children

Protecting kids from air pollution involves more than improving the air around them. Air quality education can introduce environmental health concepts in ways that suit different ages and lets children experience hands-on learning.

Air quality monitoring provides a practical way to bring these lessons to life through data collection methods students can see. Indoor and outdoor air quality monitoring provides access to real-time and historical air quality information, helping students and educators observe changes in pollution levels to connect them with local environmental conditions and air pollution sources.

Whether a school is in Louisiana, Cameroon, or Thailand, students with access to monitors can use air quality data to explore patterns, discuss potential pollution sources, and consider ways to reduce exposure.

The Schools4Earth program supports this approach by helping schools establish outdoor air quality monitoring. Schools4Earth is an air quality program dedicated to providing accessible data and advanced air monitoring to underserved schools. Educators can receive real-time pollution information and share air quality data to engage clean air learning within their communities. The program also creates opportunities for students to contribute to a wider network of environmental monitoring and learning.

By combining air quality education with real-world data, schools can help students become informed participants in environmental health. Children can learn not only how to protect themselves, but also how communities can work together to support cleaner air for everyone.

More ways to protect kids from air pollution

Improving children's air quality depends on action at home, at school, and across the wider community. Parents and educators can take practical steps to reduce exposure, while monitoring and filtration tools can help identify problems and support clean air decisions.

What families can do
Children rely on clean air at home for safe and comfortable breathing spaces. Parents and caregivers can improve air quality at home through daily practices and monitoring, such as:

Maintaining smoke-free indoor environments.
Checking air quality through indoor and outdoor air monitors when planning daily activities.
Utilizing ultrafine air filtration to actively clean and refresh indoor air spaces.
Limiting the use of aerosol cleaning products and candles.
Voicing air quality concerns and clean air education at school board meetings.
Supporting clean air initiatives and local pollutant monitoring.

What schools can do
As students spend hours inside classrooms, schools can take steps to create healthier schools, such as:

Joining the Schools4Earth program.
Checking air quality through indoor and outdoor air monitors when planning daily activities.
Utilizing HVAC-based air purifiers throughout the school for dual filtration and ventilation.
Developing an air quality response plan for active school days.
Limiting the usage of aerosol cleaning sprays and candles in enclosed spaces.
Integrating air quality and airborne pollutant activity into lesson plans and daily learning.
Initiating school fundraisers or clean air campaigns to spread awareness.
Joining the Clean Air School program to create tailored clean air solutions.
Applying for grants. Schools in socioeconomically disadvantaged communities may qualify for assistance through The Foundation for Clean Air.

When parents, educators, school administrators, and communities work together, they can reduce preventable exposure and help create healthier spaces for children to learn and grow.

Conclusion

Every child deserves to learn, play, and grow in an environment that supports their health. Yet air pollution remains a widespread threat, affecting children in their homes, classrooms, and communities. Because their lungs and immune systems are still developing, children are particularly vulnerable to the consequences of polluted air.

The solution begins with awareness. Parents can create healthier homes and educators can improve classroom air quality through innovative filtration and monitoring devices. Air quality monitors can help communities understand local conditions, while Schools4Earth offers a way for schools to participate in monitoring and environmental education.

Clean air should never be a privilege. It should be a priority. By working together, families, schools, and communities can help protect children's health today and build a healthier future for generations to come.

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