FIELD: medical engineering. SUBSTANCE: respiratory apparatus has sectional hollow body, reed valve positioned at delivery channel outlet and hygienic napkin made of polymeric film and secured on body. Flexible circular membrane is positioned on delivery channel nipple and pressed to body. Membrane overlaps outlet holes, its circular edge protrudes above body, and it may be bent out to form slotted clearance for emergency discharge of respiratory medium. EFFECT: enhanced reliability and efficiency. 3 cl, 3 dwg
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