Breathing apparatus

Details Breathing apparatus Breathing apparatus

A - Human Necessities

62

B

137/1.5

A62B 7/04 (2006.01) A62B 7/02 (2006.01)

Patent

CA 1067787

BREATHING APPARATUS ABSTRACT OF THE DISCLOSURE Breathing apparatus which incorporates a sensing device operable to adjust the amount of breather's exhaled gas captured in a gas collector section as direct function of flow rate and volume of the previous inhalation. The amount of exhaled gas captured is sufficiently low in carbon dioxide (CO2) content to permit rebreathing on the next in- halation, at which time the sensor again adjusts the volume of exhaled gas to be captured. In the one embodiment, a fire fighter's breathing system is described wherein the gas collector section is integral with the breathing mask worn by the fire fighter.

212434

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