Here are links for cleaner air: these are good information sources. Unless an air cleaner or other product has been specifically reviewed here, I offer no recommendation, either positive or negative.
Air Purifiers -
Ameripure Technologies advanced air purifiers, filters and smoke eaters. We also offer countertop, undersink and whole house water purifiers, portable air conditioners, and more!
Fast delivery and great prices on carbon block, chlorine, taste and odor, sediment/dirt water filters and replacement cartridges for KX Industries, Culligan, Ametek, Cuno and more... KleenWater.com
White Noise Machines at Nature's Tapestry like the popular Sleepmate, plus BlueAir purifiers, educational toys like Magz, MagnaTiles and Zome Systems and unique gift ideas like SoapRocks, Bicalho wind ups and solar rainbow makers.
U.S. Environmental Protection Agency
Ozone Generators that are Sold as Air Cleaners An Assessment of Effectiveness and Health Consequences
Energy Star Ratings on around 50 Air Purifiers. Requires adobe acrobat reader.
IQAir systems are recognized around the world as the most advanced room air cleaners ever designed. Used in homes, hospitals and medical labs around the world.
Air purifier websites come in many flavors: most have a product sale as their most wanted response. There is nothing inherently immoral about selling, but many air purifier vendors are treading the border. Air-Purifier-Power.com avoids links to dishonest vendors. Sites appearing here are not endorsed, but have been screened for quality.