A self-contained breathing apparatus that provides oxygen to the wearer either by chemical reaction or from an oxygen cylinder. See also: Self-Contained Breathing Apparatus
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}