A non-profit organization for indoor air quality professionals and technicians. Offers IAQ training and certification.

Information on a wide range of IAQ topics, including sick building syndrome, mold, fungi, air duct cleaning, ozone generators, and investigation of indoor air. Commercial site.

A scientific, third party board to establish environmental standards for indoor products and building materials. Aims to improve public health and quality of life by encouraging and helping manufacturers to build better, safer products and to uphold environmental practices in product development, manufacturing, and distribution.

Nonprofit organization conducting education and research. Offers professional training, testing, and credentials in air quality and mold remediation fields. Includes organization information and links to related sites.

National Association of Homebuilders provides advice on testing, prevention, and control.

Information on toxic mold, asbestos, radon, lead and other indoor air quality issues