Definition of "facepiece" []

• A part of various forms of mask or helmet that covers the nose and/or mouth and eyes. (noun)

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• "Each consisted of a facepiece designed to fit comfortably over mouth and nose and flexible metal tubes that fit over the ears and behind the head to hold the contraption in place."
• "It is a method for checking that a tight fitting facepiece matches the person's facial features and seals adequately to the wearer's face."
• "FACEPIECE FIT TESTING What is facepiece fit testing?"