A positive-pressure respirator, comprising: a tube (1), provided with an inner end hole (M) and an outer end hole (N) in communication with each other, wherein the outer end hole (N) is less than the inner end hole (M), and the tube (1) is used for being inserted into a nasal cavity; and a two-way air valve (2), which is located in the tube (1), wherein the two-way air valve (2) is axially movable between the inner end hole (M) and the outer end hole (N), and the two-way air valve (2) has a fluid channel (P) in communication with the inner end hole (M) and the outer end hole (N). The positive-pressure respirator has the effects of improving sleep quality, usage comfort, aesthetics, convenience etc.
展开▼
