Asthma afflicts about 20 million Americans, including 6.3 million children. Since 1980, the biggest growth in asthma cases has been in children under five. In 2000 there were nearly 2 million emergency room visits and nearly half a million hospitalizations due to asthma, at a cost of almost $2 billion, and causing 14 million school days missed each year.

Top 10 Ways Homeowners Can Ensure Good Indoor Air Quality 

Indoor Air Quality : EPA

Check out EPA's Environmental Kid's Club for other kid-friendly information about the environment

Air Quality Forecast Report for today and tomorrow. Learn about the health effects of pollution and what you can do to help.

CDC Health Topic: Air Quality Everyone is affected by the quality of our air, whether indoors or outdoors. The Centers for Disease Control and Prevention works to identify and measure ...

The Air Quality Index

The Air Quality Index (AQI) is an index for reporting daily air quality. It tells you how clean or polluted your outdoor air is, and what associated health effects might be a concern for you. The AQI focuses on health effects you may experience within a few hours or days after breathing polluted air. EPA calculates the AQI for five major air pollutants regulated by the Clean Air Act: ground-level ozone, particle pollution (also known as particulate matter), carbon monoxide, sulfur dioxide, and nitrogen dioxide. For each of these pollutants, EPA has established national air quality standards to protect public health. For Information regarding indoor air quality please visit the Indoor Air Quality Web site

See more about Trane's CleanEffects™ system on BobVilla.com
How does TRANE CleanEffects stack up against other air cleaners?

TRANE CleanEffects utilizes patented, breakthrough air cleaning technology to remove up to an astounding 99.98% of airborne allergens from the air that passes through the filter, making it 8 times more effective than even the best HEPA room filters and up to 100 times more effective than a standard 1" filter. What's more, TRANE CleanEffects has been performance-tested by LMS Technologies and Environmental Health and Engineering, Inc. (EH&E), and the results verified by professors from the Harvard School of Public Health, so you know you're getting an air filtration system like no other.

LMS Technologies is a technology consulting company that specializes in air flow measurement, filtration testing and particle analysis. Environmental Health & Engineering is an environmental consulting and engineering services company that is dedicated to ensuring safe and productive environments, and is co-founded by Dr. John D. Spengler, PhD of the Department of Environmental Health at Harvard.