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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Though yet irrational of soul, to grasp
With tiny finger—to let fall a tear;
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To stretch his limbs, bemocking, as might seem,
The outward functions of intelligent man.”
—William Wordsworth (1770–1850)
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