SELF-CONTAINED BREATHING APPARATUS Russian patent published in 2016 - IPC A62B7/00 A62B7/08 A62B7/10 

FIELD: safety.

SUBSTANCE: self-contained breathing apparatus using chemically combined oxygen is designed for respiratory protection in emergency situation with higher comfort. Self-contained breathing apparatus using chemically combined oxygen comprises a front part, regenerative cartridge, starting device, valve box, breathing bag, chemical adsorbent, inhalation and exhalation hoses, mounted on exhalation hose control device, in form of air duct with distribution valve, controlled flexible link, fixed on opposite side of valve of respiratory bag. According to invention chemical adsorbent is located in respiratory bag and is connected in parallel to exhalation line with regenerative cartridge through control device, positioned inside respiratory bag, made in form of air duct with distribution valve, connected by flexible link with respiratory bag, wherein input of chemical adsorbent in respiratory bag is connected in series with inhalation valve of valve box and front part, and output to regenerative cartridge.

EFFECT: invention provides simultaneous longer protective action on heavy modes of breathing, reduced resistance to breath and temperature reduction during inhalation.

1 cl, 1 dwg, 2 tbl