Featured in air quality
Wildfire smoke is spreading far and fast. Here’s how to live with it.
Learn to check the air quality as often as you check the weather.
Best air purifier: Fight allergens, smoke, and germs for cleaner indoor air
The best air purifiers can eliminate indoor pollen, dust, pet dander, and even some germs and airborne chemicals. Here’s what to look for in a good unit.
Here’s how many pollution-related deaths your state is exporting or importing
Nationwide, almost half are caused by out-of-state emissions.
Decades of U.S. air quality improvements may be slowing, and these areas have it the worst
Millions of Americans breathed unhealthy air in 2018.
The air quality in San Francisco is so bad, being there for a day is like smoking 10 cigarettes
Particulates in the air from wildfires make going outside a health risk for many Californians.
Airmega 400S review: This smart purifier will clear the air and your bank account
It's beautiful and effective, but comes at a high price.
Trees might actually make summer air pollution even worse
Talk about treeson
Neighborhoods subjected to deadly air quality can finally fight back
New devices let citizen scientists detect local pollutants.
Air pollution in New Delhi is literally off the charts
The most polluted city on Earth scored 999 on an index that maxes out at 500
Tesla Car’s Air Filter Tested Against Simulated Bioweapons
Also works against pollution