Face mask
Encyclopedia
Strictly, the expression face mask is tautological and means "mask
", because masks by definition go on the face; but it is sometimes used to mean:
Mask
A mask is an article normally worn on the face, typically for protection, disguise, performance or entertainment. Masks have been used since antiquity for both ceremonial and practical purposes...
", because masks by definition go on the face; but it is sometimes used to mean:
- RespiratorRespiratorA respirator is a device designed to protect the wearer from inhaling harmful dusts, fumes, vapors, or gases. Respirators come in a wide range of types and sizes used by the military, private industry, and the public...
- Among divers, diving maskDiving maskA diving mask is an item of diving equipment that allows scuba divers, free-divers, and snorkelers to see clearly underwater. When the human eye is in direct contact with water as opposed to air, its normal environment, light entering the eye is refracted by a different angle and the eye is unable...
- In American football, the offence of grasping another player's mask (the metal grid face protecter on his helmet) while trying to block or tackle him: see Penalty (American football)#Face mask.