Offers a variety of residential and commercial air filtration units from firms like Austin Air, Blueair, and Zestron.

Provides portable biological treatment systems for air, water, and soil.

Offers true HEPA air filters by Austin, Healthmate, C.A.R.E. 2000, and Amaircare.

Features HEPA air purifiers and replacement filters from Hunter. Find tips on selecting the right model.

Features this IQAir dealer offering a broad range of air purifiers and testers.

Manufactures and sells a wide range of HEPA and UV based metal construction air purifiers in multiple colors.

Dealers of a residential air quality products, humidifiers, air cleaners and filters.

New York company offering air filters and air purifying devices for residential, commercial and industrial facilities with secure online purchasing facilities.

Provides a wide selection of air cleaners and purifiers.

Manufacturer of a wide range of air cleaners and humidifiers. Markets replacement parts and filters.

Therapeutic ionizers for home and auto, from Australia.

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.

Offers UV air cleaners that destroy bacteria. Provides information about killing bacteria associated with different diseases.

Features HEPA air purifiers from Air-O-Swiss, Allerair, Blueair, Austin Air, Friedrich, and Bioniare.

Specializing in replacement air filters for heating and cooling systems, purifiers, and humidifiers.

Offers information about an assortment of indoor air products including air filters and electrostatic air purifiers.

Manufactures and markets a line of air purifiers for people with Multiple Chemical Sensitivity (MCS) and allergies.

Read about negative ioniziers and carbon based odor controllers for indoor air problems.

Manufacturer specializing in climate and humidity controllers. Includes dealer information in addition to direct ordering.

Manufacturer of air and water purification products for home and hotels.

Offers replacement HEPA air filters for furnace, air conditioner, humidifier, and air cleaner products. Name brands include Bionaire, Duracraft, Holmes, Honeywell, and Trion.

Offers replacement filters for a wide range of portable and whole-house air purifiers and humidifiers.

Sells a range of whole-house and portable air cleaners and humidifiers as well as replacement filters and parts. Offers tips and a FAQ.

Manufactures humidifiers, thermostats, air cleaners, zone control systems, and energy recovery ventilators facilitating home automation.

Sells Air Oasis and AirSource brands of air purifiers.