Patent ID: 6279571
Filing Date: 2001-08-28
Classification: A62B

Abstract:
An emergency hood to be worn by a person in an environment where there is fire or contamination, the emergency hood comprising:a hood closing off a head of a person to the ambient and said hood having an elastic, gas-impermeable ruff extending down to the neck and shoulder region of the wearer;said hood defining an interior space for accommodating a head of a wearer and being made of a fire resistant gas-impermeable material and having a transparent visor in the region of the eyes or face of a person and said visor likewise being made of fire resistant, gas-impermeable material;an oxygen supply unit for supplying oxygen to said hood for use by a person;a water and carbon dioxide absorbing flexible areal absorber unit mounted in said interior space;said absorber unit having an ejector connected to said oxygen supply unit for discharging the oxygen into said interior space and for moving respiratory air of a wearer out of said interior space and through said absorber unit whereby respiratory air again enters said interior space with water and carbon dioxide removed therefrom; and,said absorber unit including: fabric means configured to define a first plurality of first chambers and a second plurality of second chambers downstream of said first chambers, respectively; a gas-permeable fabric for separating said first chambers from said second chambers, respectively; and, each of said first chambers containing a water absorbing chemical and each of said second chambers containing a carbon dioxide absorbing chemical.