Foul smell is smelt and is distinguished nose cup

The utility model relates to a foul smell is smelt and is distinguished nose cup, including the respirator the front side of respirator is equipped with and is used for the laminating to smell the laminating portion that the person of distinguishing is facial, laminating portion is the elastic memory structure, the rear side of respirator is equipped with the air inlet, include still that second check valve, gas pocket connect and the foul smell bag, one end that the gas pocket connects with the gas vent of foul smell bag is connected, the one end of second check valve with the air inlet is connected, the other end of second check valve with the gas pocket connects keeps away from the one end of foul smell bag is connected, just the direction that switches on of second check valve does thegas pocket connect to the air inlet direction. The beneficial effects of the utility model are that: the structure sets up simply reasonable, convenient to use, and through setting up the respirator,can used repeatedly, gree