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:
“Cows are amongst the gentlest of breathing creatures; none show more passionate tenderness to their young when deprived of them; and, in short, I am not ashamed to profess a deep love for these quiet creatures.”
—Thomas De Quincey (1785–1859)
“It is part of the nature of consciousness, of how the mental apparatus works, that free reason is only a very occasional function of people’s “thinking” and that much of the process is made of reactions as standardized as those of the keys on a typewriter.”
—John Dos Passos (1896–1970)