Self-contained Breathing Apparatus (SCBA)
Firefighters and emergency service workers use full face masks that provide breathing air as well as 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 apparatuses (SCBA). Because oxygen breathing is hazardous in areas where fires may be burning, and because open-circuit compressed-air breathing sets are easier to refill than rebreathers, SCBA units are normally filled with compressed breathing air rather than oxygen.
Read more about this topic: Oxygen Mask
Famous quotes containing the words breathing and/or apparatus:
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glance;
And I was just breathing freely, after my choking pain,
When the last one of the troopers suddenly drew his rein.”
—Constance Fenimore Woolson (1840–1894)
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—Ralph Waldo Emerson (1803–1882)