Patent ID: 7909918

Claim:
An air filtration system for an air conditioning apparatus, said air filtration system comprising: a frame adapted to be mounted at an inlet to an air duct, the frame comprising a control enclosure having a control enclosure wall having at least one control switch that is at least one of (1) at least partially carried within an aperture of the control enclosure wall and (2) carried within the control enclosure and accessible through the control enclosure wall; a support member mounted on and for movement relative to said frame between a working position and a non-working position, said support member including an air inlet grille disposed thereon, wherein the air inlet grille obstructs access to the at least one control switch when the support member is in the working position and wherein the air inlet grille allows access to the at least one control switch when the support member is in the non-working position; a filter unit mounted on said support member and operable to generate a high voltage electric field for collecting particles on said filter unit from an airflow stream flowing therethrough; and a high voltage electric field charging unit mounted on said support member upstream from said filter unit with respect to the direction of air flowing through said air filtration system.