Patent ID: 8323389

Claim:
An air scrubber having: an air inlet admitting contaminated air from a lower surface; a main reservoir containing a cleaning fluid; a reduced aperture flow passageway for increasing an air flow velocity of contaminated air from said air inlet, said reduced aperture flow passageway formed by the gap between a rigid vertical surface of said air inlet and an angled rigid extension of the bottom surface of said main reservoir which also forms one side of said main reservoir; a folded duct directing said contaminated air substantially upward from said reduced aperture flow passageway to impinge onto a wetted surface, thereafter directing said contaminated air substantially downward to impinge onto the surface of said reservoir, thereafter directing said contaminated air substantially upward through a scrub reservoir; said scrub reservoir having a lower surface with a plurality of apertures for the passage of said contaminated air, said contaminated air passing through said apertures and thereby forming jets through said scrub reservoir, said jets causing said contaminated air to interact with a cleaning fluid in said scrub reservoir, thereby forming cleaned air and droplets containing said cleaning fluid mixed with contaminates extracted from said contaminated air; said cleaned air and droplets passing through a mist eliminator having a plurality of chevrons arranged in sequential rows, said mist eliminator capturing said droplets and draining them to said main reservoir, said cleaned air directed to an exhaust vent conveying said cleaned air; a pump for moving the contents of said main reservoir to an upper reservoir having a spillway which empties into said scrub reservoir; where said reduced aperture flow passageway increases the flow of contaminated air to a velocity sufficient to prevent retrograde flow of contaminates and cleaning fluid from said scrub reservoir to said air inlet.