Vacuum cleaner exhaust filter with ion generation stage

Details Vacuum cleaner exhaust filter with ion generation stage Vacuum cleaner exhaust filter with ion generation stage

A - Human Necessities

47

L

A47L 9/12 (2006.01) B01D 46/02 (2006.01) B01D 46/50 (2006.01) B01D 53/02 (2006.01) B03C 3/30 (2006.01)

Patent

CA 2290257

A vacuum cleaner exhaust filter assembly includes a main HEPA exhaust filter, and an ion generation stage to add ions to the air. The ion generation stage preferably is a polypropylene mesh which generates ions through static electric interaction with the moving air as the result of friction. The exhaust filter assembly preferably also includes a pre-filter impregnated with carbon, preferably in the form of activated charcoal, to absorb odors from the exhaust air. The filter components, arranged in the preferred order, are the carbon pre- filter, the main HEPA exhaust filter, and the ion generation mesh.

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