Vacuum cleaner utilizing electrostatic filtration and...

Details Vacuum cleaner utilizing electrostatic filtration and... Vacuum cleaner utilizing electrostatic filtration and...

B - Operations, Transporting

03

C

B03C 3/10 (2006.01) A47L 9/10 (2006.01) A47L 9/12 (2006.01) A47L 9/16 (2006.01) B01D 45/16 (2006.01) B01D 50/00 (2006.01) B03C 3/15 (2006.01) B04C 5/24 (2006.01)

Patent

CA 2293984

A method for filtering a dirty air stream in a vacuum cleaner to obtain a clean air stream comprises subjecting the dirty air stream to a first cyclonic separation stage to obtain a partially cleaned air stream and subjecting the partially cleaned air stream to an electronic filtration stage and optionally a second cyclonic separation stage to obtain the clean air stream. The electronic filtration stage is optionally removable with a cyclonic cleaning stage from the vacuum cleaner. The electronic filtration stage is optionally an electrostatic precipitator which utilizes air flow through the vacuum cleaner to generate the voltage used by the electrostatic precipitator.

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