Welcome to the Dark Side — Closed Circuit Rebreathers

By now most of you must have heard of, if not yet tried a rebreather unit of some type. They fall into two main types Semi Closed units and Fully Closed units, to me in this present day and age the semi closed units (SCR’s) have out lasted there use and are pretty well obsolete except for specialised shallow diving, they were and are a stepping stone away from Open Circuit diving (SCUBA toward the world of true Closed Circuit Rebreather diving (CCR). Most rebreathers fall under the CCR category which in its self can be split further into two sub categories – Mechanical Closed Circuit Rebreathers (MCCR) or Electronic Closed Circuit Rebreathers (ECCR). The reason for these two sub-categories is mainly due to the fact that some people do not trust their life to a unit controlled by an electrical technology well underwater, others like me “trust the technology” [...]

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