Rebreather : A type of closed-circuit breathing apparatus in which part of the exhaled air is recirculated after having been cleansed of carbon dioxide and water vapor
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}