Abstract: A multi-stage air scrubbing apparatus for removing particulate matter from contaminated air is located beneath the perforate floor of a chamber from which the contaminated air flows in order to allow light to enter the chamber and to permit visual observation of its interior. The apparatus includes a sub-floor flooded with a flowing scrubbing fluid and a scrubbing fluid spray source and conduit means having baffle members that cause the air and the fluid spray to flow in a direction-reversing serpentine path. The contaminated air passes through the scrubbing fluid spray at least twice, and preferably three or more times, in order to remove the particulate matter therefrom.

Abstract: The disclosure relates to a new apparatus for fluid dispersion for use in removing particulate matter from air. A spray head or other fluid spray-producing means comprises a rigid spray plate bent to a predetermined configuration with two spray head side plates attached to said spray plate, and two spray head side guide bars attached to said side plates. A pressurized fluid, such as water, is delivered at the bottom of the spray plate whereupon impact with the surfaces of the spray plate, side plates and guide bars causes the fluid to be dispersed in spray form. Through this spray is passed contaminated air containing undesirable particulate matter such as paint overspray, whereupon the air is scrubbed to remove substantially all of the particulate matter.

Abstract: This disclosure relates to a new apparatus and spray head for fluid dispersion for use in removing particulate matter from air. The spray head comprises a rigid spray plate bent to a predetermined configuration with two head side plates attached to said spray plate, and two spray side guide bars attached to said side plates. A pressurized fluid, such as water, is delivered at the bottom of the spray plate whereupon impact with the surfaces of the spray plate, side plates and guide bars causes the fluid to be dispersed in spray form. Through this spray is passed contaminated air containing undesirable particulate matter such as paint overspray, whereupon the air is scrubbed to remove substantially all of the particulate matter. Such a spray head apparatus would typically be located at the base of a scrubbing unit connect to a paint spray booth or the like, said scrubber containing baffles through which contaminated air is passed and cleaned prior to emitting the remaining particle-free air to the atmosphere.