Air Quality Directory
Air quality refers to how clean or dirty the air you breathe is. Poor air quality may trigger certain breathing problems and other health conditions. Follow the links below to find WebMD's comprehensive coverage about air quality, how it affects your health, and much more.
Medical Reference
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Manage Dry Indoor Air This Winter
The experts at WebMD tell you how to combat the miseries caused by dry indoor air during the winter.
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Air Purifiers: Can They Help Ease COPD?
Should you shell out for an air purifier if you have COPD? Learn how portable air purifiers can help ease COPD symptoms and ward off heart disease.
Features
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Avoid Bad Air Days: Eliminating Indoor Allergens
Easy and affordable ways to improve your indoor air quality now.
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5 Ways to Improve Indoor Air Quality
Air pollution isn’t just an outdoor concern. Mold, formaldehyde, and radon can make indoor air unhealthy. Follow these 12 steps to clean up the air in your home.
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Will Airplane Air Make Me Sick?
It's not the air on airplanes that makes you sick. It's the proximity to all the other passengers.
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Asthma and Cities: Which Cities Rank Best?
You may already know the worst cities for asthma. But what about the best cities for asthma sufferers? Here's what to look for if you're living with asthma.
Video
Slideshows & Images
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Smog Cities
Almost half of Americans breathe dirty air. Does your city make the list of the nation’s cleanest cities -- or the smoggiest? WebMD shows this year’s winners and losers; some of them may surprise you.
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Surprising Sources of Indoor Air Pollution
Air pollution is likely worse inside your home than out. See how radon, secondhand smoke, and even air fresheners can harm your family's health.
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How to Breathe Better at Home
Allergens, dust, and chemicals in your home can make you more sneezy and wheezy. Find out from this WebMD slideshow what you can do to breathe easier.