A - Human Necessities – 62 – B
Patent
A - Human Necessities
62
B
183/102
A62B 23/02 (2006.01) A61M 16/06 (2006.01) A62B 18/08 (2006.01)
Patent
CA 1332716
ABSTRACT A filter element adapted for attachment to a respirator face piece which includes front and rear walls of filter material, a breather tube, and a porous inner layer which maintains the front and rear walls in a spaced-apart relationship over substantially their entire area and which functions to evenly distribute air flow across the available filter element surface area.
597257
Brostrom Gerald Marvin
Japuntich Daniel Aallan
Yard Sabrina Marie
Minnesota Mining And Manufacturing Company
Smart & Biggar
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