Air Quality Directory

Control Asthma Triggers

The most important thing you can do to prevent asthma is to control asthma triggers. Here's how.

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.

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.

Indoor Air Pollution: Are You at Risk?

Cigarette smoke and other irritants can build up indoors, causing allergic reactions, asthma, even lung cancer. Learn about your risk factors and what to do.

Spotting Hidden Allergy Triggers, Like Dust Mites, Mold, and Pollen

Why are you snuffling and sneezing? Allergy triggers are hidden everywhere -- is one of these bothering you?

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.

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.

Commuting With Allergies

Mounting evidence links air pollution to a rise in symptoms of respiratory allergies.

Safe Air During Renovation

Renovating your home can be hazardous to your health if you don't take precautions to keep your work environment safe.

Slideshow: 10 Worst Cities for Asthma

If you have asthma, some cities are harder places to live in than others. Here are the Top 10 “Asthma Capitals” for 2015, according to the Asthma and Allergy Foundation of America.

Slideshow: Surprising Sources of Indoor Air Pollution

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.

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.

Indoor Air Quality Quiz - Allergens may lurk in your home, find solutions at WebMD

Sniff Out the Facts About Your Sense of Smell

It's right under your nose, but what do you know about your sense of smell? Take this WebMD quiz to test your nose smarts about all things smelly.

Check Your Air Quality

COPD Risk Assessment - Are You at Risk for COPD?

Take this assessment to find out whether you are at risk for COPD, chronic obstructive pulmonary disease.