Puritec  
   Providing information and solutions for indoor air pollution and water pollution. Offering air cleaners and water filters ranging from small home usage to most industrial applications.
   http://www.puritec.com

Allergy-Free  
   Offers products and services designed to enhance the home and workplace by eliminating environmental contaminants.
   http://www.allergy-free.com/

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

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

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

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

Biltwel  
   HVAC duct cleaning equipment.
   http://www.bannertown.com/airvac2.htm

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/

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

4EcoInfo  
   Distributors of air and water purification systems worldwide. Features product information and photos.
   http://www.4ecoinfo.com

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

Enprotec Corporation  
   Provider of products and services for the removing toxic chemicals and pollutants from the air and water.
   http://www.enprotec.net

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

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

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

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