Patent ID: 7182081

Claim:
A protective breathing hood comprising: a hood made of a stretchable fire resistant material and which is also impermeable to gases and biologic material, said hood sized and shaped for placing over a head of a user in an airtight manner with an opening of the hood sealingly engaging a neck portion of the user; at least a visor portion of the hood is transparent; a pair of respiratory units disposed offset with respect to the nose location; each respiratory unit comprising a housing formed with an inhalation flow path accommodating activated charcoal particles and comprising an array of receptacles defined by partitions extending between a proximal wall corresponding with an inside of the hood, and a distant wall corresponding with an outside of the hood; said receptacles accommodating the charcoal particles; the walls comprising openings corresponding with each receptacle and wherein the openings have a cross-section smaller than a cross-section of the receptacle; and the protective breathing hood further comprising an exhalation flow path fitted with a one way exhaling valve, and wherein in a donned position of the breathing hood a chamber is formed at a mouth/nose location thereof.