What Is an Oxygen Mask?
Oxygen masks are devices that are constructed to supply oxygen or other gases to an individual. Masks of this type fit snugly over the nose and mouth, and are equipped with a tube that connects the oxygen mask to a storage tank where the oxygen is contained. The mask may be constructed of rubber, silicone, or plastic. There are a number of different types of oxygen masks in use. Some are designed for use in medical facilities while others are routinely part of the support equipment supplied to firemen, the military, and members of several other professions.