| 摘要 |
FIELD: equipment for keeping person's life in unsuitable for breathing environment. ^ SUBSTANCE: breathing apparatus comprises cylinder with compressed air, shut-off valve, pressure reducer, breathing mask with expired valve and hose, elastic shell changing its volume accordingly with inspiration-expiration cycle. Pressure reducer may regulate air flow upon demands of endogenously breathing person. ^ EFFECT: extended operational capabilities. ^ 2 cl, 1 dwg |
