Basic principle
At shallow depths, a diver using open-circuit breathing apparatus typically only uses about a quarter … See more

In closed circuit rebreathers the breathing loop gas mixture is either known (100% oxygen) or monitored and controlled within set limits, by either the diver or the control circuitry, but in the … See more

The general principle of diving safety, that the diver must be able to deal with any single immediately life-threatening equipment failure … See more

The procedures needed to use a given model of rebreather are usually detailed in the operating manual and training program for that rebreather, … See more

Training in the use of rebreathers has two components: Generic training for the class of rebreather, including the theory of operation and the … See more

A rebreather functions by removing carbon dioxide from the exhaled gas, replenishing oxygen used, and providing the recycled gas at ambient … See more

Each possible failure mode has an associated response. Those which are more likely to occur or have serious consequences will have associated emergency … See more