Smoke mask apparatus

Details Smoke mask apparatus Smoke mask apparatus

A - Human Necessities

62

B

2/42

A62B 18/02 (2006.01) A62B 23/02 (2006.01)

Patent

CA 1064201

ABSTRACT A smoke mask comprises a transparent face shield covering a wear's nose and eyes in a substantially airtight manner, and a replaceable air filtration cartridge system attached to the face shield and provided with a conduit leading into the mouth of the wearer, through which he breathes. Exhaled air passes through the air filter in a reverse direction from from that inhaled and never comes into contact with the interior surface of the lens in the face shield, thus eliminating the possibility of fogging.

288864

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