Air | Resources
Has product certification programs which recommends products that improve indoor air. They currently have three programs: GREENGUARD Indoor Air Quality Certified® (for low emitting interior building materials, furnishings, and finish systems), GREENGUARD for Children & SchoolsSM (for low emitting interior building materials, furnishings, and finish systems used in educational (daycare and K-12) environments), and GREENGUARD for Building ConstructionSM (for newly constructed multifamily and commercial properties that follow best practice guidelines for preventing mold during the design, construction and ongoing operations). All GREENGUARD Certified Products have been tested for their chemical emissions performance according to specific emissions standards given on the website. A good place to check when you are looking for building and interior products.
Lots of information in English and Spanish about indoor air quality. Detailed tip sheets tell about choosing and using furnace filters, mold control, testing your home for radon, carbon monoxide poisoning, controlling cockroaches, use and care of home humidifiers and dehumidifiers, reducing dust mite allergens, and more.