Abstract: A modular, low-profile ceiling air filtration unit is disclosed having a diffuser plate with an unperforated zone along one edge, the remainder of the plate being perforated. A blower in the unit plenum directs air toward the end of the plenum having the unperforated zone. Turbulent air impinging on the housing end wall is prevented from passing through to a filter by the unperforated zone of the diffuser plate.
Type:
Grant
Filed:
June 25, 1991
Date of Patent:
December 1, 1992
Assignee:
Clean Rooms International, Inc.
Inventors:
Donald L. O'Keefe, Thomas J. Belka, Jr.