| 摘要 |
FIELD: safety equipment. ^ SUBSTANCE: it is intended for application in respirators. Opened electric air-purifying respirator including: enclosed casing of the respirator, limiting the single continuous closed internal space; inlet airway has intake and distributive part which directs environment air in the casing; set of the canisters located in the casing; and airblower that pumps air, at least, through one intake inside the casing, and through set of canisters - for reception of filtered breathable air. The valve operates stream of environment air through inlet airway. The seal for the fluid medium, located in the air channel between intake and canisters, prevents ingress of liquids in canisters. Enclosed casing of the respirator is strengthened and has possibility to support protection for canister from a flame and heat during use of a canister. Recycle valve directs earlier filtered air back in a casing. ^ EFFECT: invention provides time increase of respirator wearing. ^ 31 cl, 20 dwg |
