Protective hood and oral-nasal mask

Details Protective hood and oral-nasal mask Protective hood and oral-nasal mask

A - Human Necessities

62

B

2/72.1, 137/1.5

A62B 17/04 (2006.01) A62B 7/10 (2006.01)

Patent

CA 1326805

ABSTRACT The instant invention is a respiratory system for use on aircraft or similar compartments to temporarily prevent asphyxiation and suffocation due to the presence of smoke, toxic gases and/or noxious gases resulting from aircraft fire or similar such. The respiratory system consists of a small dropout package containing a protective hood for deployment to enclose the head of the passenger to improve the passenger's vision in the smoke, a protective breathing mask for enclosing the mouth and nose of the passenger in order to provide breathable air and a dual air supply system. The respiratory system provides a connection to a fresh, breathable air supply from the aircraft's emergency air source and provides a chemical air purifier preferably including a wet scrubbing system for purifing cabin air of contaminants to supply additional breathable air. The respiratory system is disengageable from the aircraft's emergency air source for evacuation.

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