Air filter device

Details Air filter device Air filter device

A - Human Necessities

42

B

A42B 3/22 (2006.01) A42B 3/04 (2006.01)

Patent

CA 2593296

An air filtration device for a helmet protective face mask comprising a filtration shield, adapted to receive at least one filter and means for temporarily and securely engaging the filtration shield to the helmet protective face mask.

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