There is a wide range of information about indoor air quality available to you through the Web. Here are a few websites that you can trust.
EPA's Indoor Air Quality Home Page
The U.S. Environmental Protection Agency presents a comprehensive overview of indoor air quality and related health problems in homes and workplaces.
Association of Home Appliance Manufacturers
Get the facts about Clean Air Delivery Rate (CADR), and learn how to compare the performance of different air purifiers, from the independent organization that tests them.
American Lung Association
Founded in 1904 to fight tuberculosis, ALA today fights lung disease in all its forms, with special emphasis on asthma, tobacco control and environmental health.
American Academy of Allergy, Asthma & Immunology
The AAAAI has been a force for the study and treatment of allergic diseases since 1943. Visit their site for information and educational materials on living with respiratory conditions.
Centers for Disease Control and Prevention
The CDC's "Health Topics A-Z" puts information on air pollution, asthma, and other clean air issues at your fingertips.
This lab at the Swedish Museum of Natural History studies pollen and spores, reflecting a longstanding Swedish interest in air quality issues.