Filter element

Details Filter element Filter element

1988-05-17

1989-12-12

Burr, Edgar S.

Surgery

Respiratory method or device

Means for removing substance from respiratory gas

12820617, 12820615, 55DIG35, A62B 700

Patent

active

048860581

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.

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