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Anesthesia face masks are rubber or silicone masks that cover both the mouth and nose of the patient. Face masks are used to deliver O2, N2O-O2, and/or other inhalation anesthetics before, during, and after the anesthetic procedure. Because of the variations in the size and shape of faces, several different sizes of face masks should always be available.
Typically, face masks are made from a clear plastic or rubber that allows the patient's mouth and nose to be seen so that foreign material (e.g., vomitus, blood) and condensation may be observed. Many different connectors of various materials, shapes, and with or without sample ports attach the face mask to the anesthesia circuit, continuing to connect to the anesthesia machine
