PERSONAL BREATHING APPARATUS Russian patent published in 2015 - IPC A62B11/00 A62B7/10 A62B19/02 

FIELD: rescue facilities.

SUBSTANCE: invention relates to the field of rescue equipment, namely to personal respiratory protective equipment using chemical products. The personal breathing apparatus comprises a front part, the inhalation and exhalation valves, a cartridge with a regenerative product, a breathing bag, a filter cartridge, a device for controlling the operation of the apparatus. According to the invention, the filter cartridge connected to the outside through the check valve comprises a catalyst of deep oxidation of harmful gas impurities and is also connected to the breathing bag, on one side, and a valve of discharge of the mixture exhaled, on the other side, through the device for automatic controlling the operation of the apparatus.

EFFECT: increased time of protective action of the apparatus and/or reduction of the overall weight of the consumable regenerative product in the breathing apparatus.

2 dwg