| AAF International: Manufactures air filtration and pollution control products and systems, including dust collectors, nuclear and biological filters, and gas turbine inlet air filtration, for industrial, commercial, and residential use. |
| Air Care Technology Ltd.: Specialized in cleanroom systems and air filtration. |
| Air Quality Engineering: Manufacturer of air cleaners, purifiers, and filtration systems for industrial and commercial use. |
| Airguard: Manufacturers of air filtration products for the commercial, industrial and institutional markets. |
| Camfil Farr: Designs and manufactures air filters and filtration equipment for commercial and industrial buildings, manufacturing cleanrooms, diesel powered vehicles, and specialized OEM equipment. |
| Fitlration Group Inc.: A manufacturer and supplier of filtration products for the hvac, industrial and process, liquid and safety markets. |
| Healthy Air: Offering air purification and dehumidification systems that bring fresh, filtered air inside. Also offering mold testing and remediation. |
| Koch Filter Corporation: A manufacturer of air filtration products and for commercial, industrial, hospital, and paint filtration systems. |
| PlymoVent: Products include electronics, welding and mechanical industries as well as plastics, food and chemical industries. |
| Purafil: Manufacturer of air cleaning and filtration product to protect people, electronics, and artifacts from airborne contaminants. |
| Purolator Air Filtration: Manufactures air filtration products to retail, wholesale, and commercial and industrial applications. |
| Trion: Air purification systems. Provides company profile, links, and contact information. |
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