The present invention relates to the improvement in a face mask (1) for medical use, respiration anesthesia or first aid use. The face mask (1) is structured from a main body casing (10) made of hard plastic, with a tubular shaped air inlet (11) protruding from the surface of the casing (1) and a mouth-shaped adhering piece (12) made of soft elastic plastic. The adhering piece (12) is formed on the peripheral edge of the opening of the casing (10), and is used to adhere to the users face. Anti-slip portions (13a, 13b) that are formed as an integral body with the soft adhering piece (12) are provided on at least one portion of the surface of the casing (10).Presence of the anti-slip portions (13a, 13b) is used to enable health care personnel to easily hold the face mask (1) and prevent the face mask (1) from slipping when fitting the face mask (1) to a patient or when removing the face mask (1) to examine the patient or for cleaning and sterilizing.The anti-slip portions (13a, 13b) may be formed as protruding strips (131, 133), sheet forms (134), protruding points (132) or a mixed configuration thereof. Because the anti-slip portions (13a, 13b) are formed as an integral body extending from the adhering piece (12), thus, very little material is used, and increase in cost is limited, but the improvements made make the face mask more convenience to use.
