Oxygen-breathing transparent face guard

The utility model relates to an oxygen-breathing transparent face guard, which is composed of an organic observation glass cover, a latex air bladder conforming to the physiology feature of the concave line of the human body maxillofacial region, a valve plunger, a rubber high cylinder gasket, a metal fixing bracket for a four-head belt, and oxygen supply joints. While in use, viewers can observe the patient's lips change when the patient absorbs oxygen, to deal with and treat the change of the patient's condition in time without injuring the patient's face. The utility model is a novel oxygen-breathing face guard with wide developing foreground.