Aself
contained breathing apparatus, or SCBA
is a device worn by rescue workers, firefighters, and others to provide
breathable air in a hostile environment. The term "self-contained"
differentiates SCBA from other apparatus connected to a remote supply
by a long hose. SCBA
units
typically include full facepiece, regulator, demand valve, pressure
gauge, carrier/harness and cylinder. The air cylinder usually comes in
a 30 minute tank. A 30
minute tank however, can last as little as 10-15 minutes under full
exertion. See
more info.
