AccuAire Air Treatment Systems
   Air treatment system available with an air quality sensor to control units operation. No filters to replace or plates to clean.
   http://www.bilgebuster.com/ProdLineHome.htm

Advanced Air Solutions
   Advanced Air Solutions provides home and office air purification systems
   http://www.advancedairsolutions.com/

Air and Water Technology, Inc.
   Information on indoor air and water contaminants and removal strategies using "natural" technologies.
   http://www.airwater.com/

AllerAir Industries
   Manufacturer of air purifiers and cleaners with activated carbon, HEPA, UV and photocatalytic technology. Includes dealer information.
   http://www.allerair.com/

Aquaphor
   Russian manufacturer of water filter devices with global distribution.
   http://www.aquaphor.com

Atlantic Ultraviolet Corporation
   Manufactures water purifiers, air and surface sanitisers and germicidal lamps.
   http://www.ultraviolet.com/

Crystal Air
   Provides commercial and domestic ozone generators and purifiers for air and water purification.
   http://www.ozone.ca

Cuno Inc.
   Standard and custom design and manufacture of filtration systems for water purification, healthcare and industrial applications.
   http://www.cuno.com/

DP Filters
   Providing commercial and industrial accounts in Northern and Central Illinois with air filtration products and services.
   http://www.dpfilters.com/

Ecologix Environmental Systems
   Offering air and water purification as well as wastewater treatment and recycling systems.
   http://www.ecologixsystems.com/

Electrodepot indoor air quality
   Air purifiers and air filters, allergy relief and negative ion generators. Products for indoor air quality improvement Hepa filters and odor elimination systems
   http://www.electrodepot.net

FCI Watermakers - Reverse Osmosis Systems
   FCI markets reverse osmosis systems for fresh, brackish and sea water.
   http://www.fciwatermakers.com

Fuller Ultraviolet Corporation
   Ultraviolet germicidal technology for use in liquid sweetener storage applications, HVAC commercial and residential systems, and liquid sterilization.
   http://www.fulleruv.com

Genqao Technology Corporation
   China based manufacturer of air and water ozone filters. Site in Chinese and English, and includes product photos, overview of ozone technology, and sales network.
   http://www.genqao-o3.com

Group AT Export, SA
   Disinfection and deodorization of water and air and ozonization systems of reduced coefficient.
   http://www.atexport.com/

IQAir
   Air cleaning solutions and product information.
   http://www.iqair.us/

Mobile Hospital Air Purification Systems
   Air purification systems with a FDA 510K certification, mandatory for hospitals and health care facilities.
   http://www.biologicalcontrols.com

Natralite Filters, Inc
   Light filters put melanin back into artificial light.
   http://www.natralitefilters.com/

Ozone Industries-UK
   A UK designer and manufacturer of ozone generators for commercial and domestic air and water purification.
   http://www.ozone-industries.co.uk/

Ozonox
   Manufactures and distributes commercial, industrial, and medical ozone generators for air and water purification systems.
   http://www.ozonox.com/

Ultraviolet Devices, Inc.
   UVDI is a manufacturer and distributor of UV lamps used in air and water disinfection products.
   http://www.uvdi.com/