Abstract: An air purification apparatus has an inner housing with an air inlet and an air outlet. Preferably the inner housing is fabricated as a one-piece molded plastic structure. A filter is mounted within the inner housing. A blower is mounted within the inner housing for drawing air in through the inlet, through the filter and out through the outlet. An outer housing is secured substantially about the inner housing with portions thereof spaced from the inner housing and having an air inlet and an air outlet communicating respectively with the air inlet and the air outlet of the inner housing. In the preferred embodiment, the outer housing is fabricated as a one-piece structure of molded plastic material, with integrally molded vertical reinforcing ribs, stackable detents on the top and the bottom of the housing, and a recessed integral ring about the outlet for storing an electrical cord. Closures are provided for the inlet and the outlet of the outer housing to seal the housing when the apparatus is not in use.

Abstract: An air purification system for use with an air conditioning apparatus which includes an air circulation system having supply air flow to a given area and return air flow for drawing air from that area. The air purification system includes an inlet and an outlet. A conduit communicates the inlet with the air circulation system for drawing therefrom a portion of the air passing therethrough. A conduit communicates the outlet with the air circulation system downstream of the inlet for returning the portion of the air back to the circulation system after it has passed through the air purification unit. A superheating conduit also communicates between the inlet and an exhaust of the air conditioning apparatus, such as the chimney of a furnace.