초록 ▼

A room air treatment system includes a housing or cabinet defining a filter chamber and a blower chamber. A blower, disposed within the blower chamber, is connected to the filter chamber by a duct. Positioned within the filter chamber is a HEPA filter and activated carbon or charcoal filter assembly

A room air treatment system includes a housing or cabinet defining a filter chamber and a blower chamber. A blower, disposed within the blower chamber, is connected to the filter chamber by a duct. Positioned within the filter chamber is a HEPA filter and activated carbon or charcoal filter assembly. The housing defines an air inlet covered by a prefilter and an air outlet within which a louver assembly is disposed. A pivotal bail or generally U-shaped rod engages a generally rectangular filter retaining frame to sealingly retain the filter stack within the filter chamber. A control system is included for controlling operation of the blower motor.

대표청구항 ▼

An air filtration device, comprising: a filter housing including a front panel, a rear panel, side panels and top and bottom panels, said housing defining an air inlet aperture in said rear panel and an air outlet aperture in said front panel; a filter disposed within said filter housing, said housi

An air filtration device, comprising: a filter housing including a front panel, a rear panel, side panels and top and bottom panels, said housing defining an air inlet aperture in said rear panel and an air outlet aperture in said front panel; a filter disposed within said filter housing, said housing including support means defining a flange for supporting said filter downstream of said air inlet aperture; and filter retaining means within said housing for retaining said filter in an operative position, said retaining means comprising: a frame engaging said filter at an end opposite said air inlet; and a resilient means mounted within said housing for movement between an operative position engaging said frame and resiliently biasing said frame to sealingly clamp said filter between said frame and said flange and a release position releasing said frame and permitting removal of said filter from said housing.