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| Glasfloss Industries, Inc. Manufacturer of air filter products for air condition systems. |   |
| Aero-Flo Industries, Inc. A manufacturer of products for the heating, ventilating, and air-conditioning industry. |   | |
| Clairion Home Care Products Provider of air-cleaning ceiling fans with carbon filter cartridges mounted in each blade for cleaner, fresher air. |   | |
| Columbus Industries, Inc Located in Ohio. Supplier of air filtration products. |   | |
| Zellweger Analytics Providers of environmental monitoring instrumentation for indoor air quality measurement, laboratory analysis, fire and gas detection and fixed and portable gas monitoring. |   | |
| Bionaire Suppliers of air purifiers and humidifiers worldwide. |   | |
| Air Flow Technology Located in Wisconsin. Manufactures filters that fit various spraybooths such as AFC, Blowtherm, CMC, DeVilbiss, Eagle, Garmat, Kayco, Nova Verta, Spray Bake, Saico, Saima, Welbilt, and many others. |   | |
| Northstream Industries Ltd. Designs, engineers and manufactures air cleaning solutions and systems. |   | |
| Web Products, Inc Headquarters in Kansas City. Makes a complete line of electrostatic furnace & air conditioning filters for improved air quality. |   | |
| Kooltronic, Inc. / Thermax Division Products are used to eliminate sick building syndrome. Products are sold to contractors, builders, school systems and municipalities. Th. Manufacturer of cooling and ventilation equipment to interface with building air quality control systems. |   | |
| Air Sponge Filter Company Based in Coral Springs, Florida. A suplier of a large assortment of indoor air products including electrostatic air filters, portable room HEPA Air Cleaners and Replacement filters. |   | |
| Bel-Aire Illustrated online catalog with secure discount ordering. Sells electronic air cleaners and factory replacement parts. |   | |
| Sentry Air Purification Systems Industrial benchtop air cleaners with HEPA and Carbon filters that remove particles of smoke, fumes, and dust. |   | |
| Extra Packaging Corp. Provider of manufacturing related services. Products and services are sold to the medical and electronics industries. This company . Manufacturer of medical surgical packaging; and electronic connectors/packaging as well as military packaging. |   | |
| Purafil WorldNet Manufacturer of air quality systems for the removal of odorous, corrosive and toxic gases. |   | |
| OsKar Antipollution of America Manufacturer of industrial air cleaning equipment and filtering equipment. |   | |
| Radiant Electric Heat, Inc. Manufacturers and suppliers of electric radiant heating products for home, office and commercial applications. |   | |
| Air Filter Store, The The company sells electrostatic air filters and room air cleaners for home or auto. |   | |
| Aramsco A supplier of environmental safety products, indoor air quality encapsulants or safety glasses, including disaster-related emergency supplies, asbestos or lead abatement products and more. |   | |
| Blueair Located in Illinois. Makers of a silent air purifier that takes away particles and gases. |   | |
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