What causes indoor air quality problems?

Indoor air quality problems can result from excessive moisture, radon, combustion gases, and many other contaminants that may accumulate inside. The first strategy to achieving good indoor air quality is to stop these contaminants at their sources. However, not all contaminants can be eliminated at the source, for example excessive moisture in kitchens and bathrooms. Proper ventilation strategies can reduce indoor pollutant levels by bringing in enough outdoor air to dilute emissions from indoor sources and by carrying indoor air pollutants out of the home. For more information see The Inside Story: A Guide to Indoor Air Quality or Care for Your Air: A Guide to Indoor Air Quality.

www.epa.gov/indoorairplus/index.html

• Why are the Indoor airPLUS Construction Specifications (Rev.01) not called Version 2?
• When are the Indoor airPLUS Version 1 (Rev. 01) changes effective?
• How can I use social media to help promote Indoor airPLUS?