MOUTH MASK WITH EXHALATION VALVE

摘要

A mouth mask with an exhalation valve, comprising a three-dimensional cup mask (1) and an exhalation valve (35) disposed on the three-dimensional cup mask (1); the exhalation valve (35) consists of a wedge-shaped slot (351) extending in the direction away from human face; at the end of the wedge-shaped slot (351) in the extending direction are two sheets (352) pressing against each other without external force; and the exhalation valve (35) is disposed at one end of the three-dimensional cup mask (1) near the human chin. The mouth mask is comfortable to wear, has a good filter effect and a simple structure, and facilitates manufacturing.