Respirator filtration device

Details Respirator filtration device Respirator filtration device

1997-03-11

1998-03-31

Millin, Vincent

Surgery

Respiratory method or device

Means for removing substance from respiratory gas

12820615, 12820617, A62B 700

Patent

active

057326959

ABSTRACT:
A novel filtration device having a substantially rigid frame comprised of an outer peripheral band connected by a plurality of spacers to an inner breather tube, wherein filter pads are secured over both sides of the frame and separated by the spacers to form an enclosed central air pocket accessible only through the breather tube. The breather tube is adapted to be detachably connected to an inlet port in a respirator face mask so as to provide a closed channel for air flow from the central air pocket to the interior of the face mask.

REFERENCES:
patent: Re35062 (1995-10-01), Brostrom et al.
patent: 2227959 (1941-01-01), Cover
patent: 4883052 (1989-11-01), Weiss
patent: 4886058 (1989-12-01), Brostrom et al.
patent: 5038775 (1991-08-01), Maruscak et al.

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