Dustless.Com
Offers information about an assortment of indoor air products including air filters and electrostatic air purifiers.
http://www.dustless.com/

Sylvane
Offers a number of brands of air purifiers, filters, and accessories.
http://www.sylvane.com/

ClearFlite Air Purifiers
Features HEPA air purifiers from Air-O-Swiss, Allerair, Blueair, Austin Air, Friedrich, and Bioniare.
http://www.airpurifiers.com/

Pure Air Systems
Filtration and air cleaning equipment and replacement filters.
http://www.pure-airsystems.com/

InTech Marketing
Offers a line of air purifier models for most requirements as well as humidifiers and filtered ashtrays.
http://www.allergytech.com/

Berriman Associates
New York company offering air filters and air purifying devices for residential, commercial and industrial facilities with secure online purchasing facilities.
http://www.berriman-usa.com/

AirShack.com
Features HEPA air purifiers and replacement filters from Hunter. Find tips on selecting the right model.
http://www.airshack.com/

FiltersAmerica.Com
Offers replacement filters for a wide range of portable and whole-house air purifiers and humidifiers.
http://www.filtersamerica.com/

EverGreen Rooms by Hartford
Manufacturer of air and water purification products for home and hotels.
http://www.evergreenrooms.com/

NewFilter.com
Features a selection of air purifier, humidifier and appliance replacement filters.
http://www.newfilter.com/

Hepalta Purified Air Inc.
Features this distributor of Amaircare and AllerAir, portable HEPA, as well as central system air cleaning systems.
http://www.hepalta.com/

E.L. Foust Co.
Manufactures and markets a line of air purifiers for people with Multiple Chemical Sensitivity (MCS) and allergies.
http://www.foustco.com

CaluTech Clear Air
Offers UV air cleaners that destroy bacteria. Provides information about killing bacteria associated with different diseases.
http://www.calutech.com/

Optimair Limited
Provides a wide range of electrostatic air filters and portable air conditioning units to help make your office environment cleaner and more comfortable.
http://www.optimair.co.uk/

FiltersUSA.Com
Sells a range of whole-house and portable air cleaners and humidifiers as well as replacement filters and parts. Offers tips and a FAQ.
http://www.filtersusa.com/

Mitsubishi Electric PlasmaPure
Provides information about an air purifier combining a HEPA filter with advanced plasma technology.
http://www.plasmapure.com/

BestFilters.com
Provides a wide selection of air cleaners and purifiers.
http://www.bestfilters.com/

Sani-Shield International
Offers a range of air indoor air quality products including HEPA air filters and air fresheners.
http://www.sanishield.com/

General Filters, Inc.
Manufactures humidifiers, thermostats, air cleaners, zone control systems, and energy recovery ventilators facilitating home automation.
http://www.generalfilters.com

AirFilterStore.com
Offers true HEPA air filters by Austin, Healthmate, C.A.R.E. 2000, and Amaircare.
http://www.airfilterstore.com/

Zeolite Depot
Offers zeolite, a safe, natural, and non-toxic mineral used in air purifiers. Eliminates odors, moisture, noxious fumes, mold, and mildew naturally.
http://members.tripod.com/volcanic_zeolite/

Filter Savings
Offers replacement HEPA air filters for furnace, air conditioner, humidifier, and air cleaner products. Name brands include Bionaire, Duracraft, Holmes, Honeywell, and Trion.
http://www.filtersavings.com/

AirTesters.com
Features this IQAir dealer offering a broad range of air purifiers and testers.
http://www.airtesters.com/

A1 Air Filters
Offers a variety of residential and commercial air filtration units from firms like Austin Air, Blueair, and Zestron.
http://www.a1airfilters.com/

Alpine Home Air Products
Dealers of a residential air quality products, humidifiers, air cleaners and filters.
http://www.alpinehomeair.com

Electrocorp Company
Read about negative ioniziers and carbon based odor controllers for indoor air problems.
http://www.electrocorp.net/

HomeAirTreatment.com
Retailer of portable HEPA air purifiers and humidifiers. Offers technical details and research about the effects of dirty air.
http://www.homeairtreatment.com/

Electrodepot
Manufacturer specializing in climate and humidity controllers. Includes dealer information in addition to direct ordering.
http://www.electrodepot.com/

BPA Air Quality Solutions
Offers air purification equipment for residential, commercial, industrial and manufacturing applications. Also features air testing equipment, cleanroom laser particle counters and ultra-violet (UV) sterilizers.
http://www.breathepureair.com/

Air & Water Solutions, Inc.
Provides portable biological treatment systems for air, water, and soil.
http://www.airwatersolutions.com/

Bionic Products Party, Ltd.
Therapeutic ionizers for home and auto, from Australia.
http://www.negativeions.com/

D&T HVAC
Specializing in replacement air filters for heating and cooling systems, purifiers, and humidifiers.
http://www.allkindsoffilters.com/

Healthy Living By Choice Associates/
Sells Air Oasis and AirSource brands of air purifiers.
http://www.healthylivingbychoice.com

Playa Lung
Respro brand pollution masks, designed for bicycle riding through polluted metropolitan areas or for filtration of playa dust.
http://www.playalung.com