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An oxygen mask provides a method to transfer breathing Oxygen gas from a storage tank to the Lungs . Oxygen masks may cover the nose, mouth or the entire face. Oxygen masks are made of Plastic Silicon and Rubber . Plastic masks are used primarily by Medical care providers for Oxygen Therapy as they are disposable and reduce cleaning costs. As they are light in weight they are accepted by many patents whom may feel uncomfortable wearing an oxygen mask. Plastic masks also allow medical care providers to see through the mask to the face of a patient and determine if they are in distress. Silicon and rubber oxygen masks designed to provide a tight seal without leakage are used by Aviator s, medical researchers, and Hyperbaric Chamber or other patients that require administration of 100% oxygen. Hoses or tubing connect an oxygen mask to the oxygen supply. When hose is used it may have a ribbed or corragated design to prevent bending and cutting off the oxygen flow. Some types of oxygen masks have a breathing bag made of plastic or rubber attached to the mask or oxygen supply hose to store a supply of oxygen to allow deep breathing without waste of oxygen. The quanity of oxygen delivered from the storage tank to the oxygen mask is controlled by a valve called a regulator. Valves inside tightly sealed oxygen masks control the flow of oxygen into the mask and exhalation from the mask so that rebreathing of exhalation gas is not possible thus insuring inhalation of 100% oxygen. Firefighters and Emergency Workers use full face masks that can provide oxygen and eye and face protection. These masks are typically attached to a tank carried upon the back of the wearer and are called self contained breathing apparatus ( SCBA ). Oxygen breathing is hazardous in areas where fires may be burning, SCBA units are normally filled with compressed breathing air rather then oxygen. Specialized full face masks that can supply oxygen or other Breathing Gases are used by Divers and Astronauts . Full face and other tightly sealed oxygen masks are secured upon the face by adjustable headstraps. SEE ALSO |
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