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Free Indoor Air Quality Hotlines and Resources

Free Indoor Air Quality Hotlines and Resources

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IAQ INFO | Asthma "No Attacks" Hotline | Smoke-free Home Pledge Hotline | National Radon Information Line | Radon Fix-it Line | National Hispanic Indoor Air Quality Hotline | Tools for Schools Technical Assistance Hotline

Indoor Air Quality (IAQ) Information Clearinghouse [IAQ INFO]


IAQ INFO is an easily accessible, central source of information on indoor air quality, created and supported by the U.S. Environmental Protection Agency (EPA). As concern about air pollution indoors has grown, so has the amount of information on this subject but getting current, useful information can be a challenging task. The purpose of IAQ INFO is to help you locate information to answer your questions about indoor air pollution.

Consumers may call the toll-free number 1-800-438-4318 to speak to an information specialist, Monday through Friday, 9:00 a.m. to 5:00 p.m. eastern time. After hours, consumers may leave a voice message, or you may make inquiries by fax (703) 356-5386 or via e-mail: [email protected] anytime and by mail at:

Indoor Air Quality Information Clearinghouse (IAQ INFO)
P.O. Box 37133
Washington D.C. 20013-7133

Asthma No Attacks Hotline
1-866-NO-ATTACKS (1-866-662-8822)

To speak with an Asthma Information Specialist, please call (800) 315-8056, Monday through Friday, between 9am and 8pm EST.

Smoke-free Home Pledge Hotline
1-866 SMOKE-FREE (1-866-766-5337)

Take the Pledge online at or call our toll-free Smoke-free Home Pledge Hotline at 1-866-SMOKE-FREE (1-866-766-5337).

Once you pledge online, you can print out a certificate saying you made your home smoke-free. You can also receive a Smoke-Free Home Kit by mail that includes the certificate plus:

  • A congratulations letter from the EPA
  • Tips on keeping your home smoke-free
  • A smoke-free home magnet

To order the Kit, please call our Smoke-free Home Pledge Hotline at 1-866-SMOKE-FREE (1-866-766-5337).