Patent ID: 8800560

Claim:
A ventilator comprising: (a) a housing having an interior and an exterior; (b) an inlet port extending from the exterior to the interior of the housing; (c) a flow generator disposed within the ventilator and being structured to generate a flow of gas; (c) an outlet port for discharging the flow of gas from the housing; and (d) an inlet airflow assembly comprising: (1) a cover member selectively coupled to the housing of the ventilator at or about the inlet port, the cover member comprising a first side, a second side disposed opposite the first side, a plurality of walls extending substantially perpendicularly outwardly from the first side of the cover member, and an inlet aperture extending through the cover member, and (2) a number of filtering members disposed between the first side of the cover member and the housing of the ventilator, wherein at least one of the walls extends through a corresponding one of the filtering members.