Patent ID: 6620041
Filing Date: 2003-09-16
Classification: B01D,F04D

Abstract:
A clean air room having two suspended ceilings, an upper suspended ceiling and a lower suspended ceiling, a source of pre-filtered air above the upper suspended ceiling,a series of openings in the upper suspended ceiling, a multi-use fan and fan motor mount assembly located in the openings in the upper suspended ceiling, the multi-use fan and fan motor mount assembly comprising a bifurcated conical air inlet a bifurcated conical air inlet and blown air deflector, a fan motor mount, motor mount supports, a fan motor and a fan, the bifurcated conical air inlet and blown air deflector having a long outer wall, and a short inner wall, an aperture defining a central opening in the top of the bifurcated conical air inlet and blown air deflector, the fan and fan motor having a common longitudinal axis with the longitudinal axis of the bifurcated conical air inlet and blown air deflector, the fan having a series of vanes extending outwardly from the central longitudinal axis of the fan, the inside of the long outer wall of the bifurcated conical inlet and blown air deflector surrounding more than half of the longitudinal height of the vanes of the fan, the lower suspended ceiling comprising non porous and porous panels, the porous panels comprising final filters which can be removed from within the room.