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Rebreather diver with bailout and decompression cylinders. Scuba gas management is the aspect of scuba diving which includes the gas planning, blending, filling, analysing, marking, storage, and transportation of gas cylinders for a dive, the monitoring and switching of breathing gases during a dive, efficient and correct use of the gas, and the provision of emergency gas to another member of ...
Another type of small independent air source is a hand-held cylinder filled with about 85 litres (3.0 cu ft) of free air with a diving regulator directly attached, such as the Spare Air. [64] This source provides only a few breaths of gas at depth and is most suitable as a shallow water bailout.
Scubapro – Brand of scuba diving equipment – Scuba regulators, fins, lights, dive computers, Seacraft (DPV brand), also known as Marine Tech S.A. – Polish manufacturer of diver propulsion vehicles. [119] Seac Sub Italian manufacturer of diving equipment for scuba, freediving, spearfishing and snorkelling. [120] Seadive – (See Oceanways ...
Underwater breathing apparatus can be classified as open circuit, semi-closed circuit, (including gas extenders) or closed circuit (including reclaim systems), based on whether any of the exhaled gas is recycled, and as self-contained or remotely supplied (usually surface-supplied, but also possibly from a lock-out submersible or an underwater habitat), depending on where the source of the ...
Internally, the blending equipment and diving cylinders must be oxygen clean; all fuels and particles which could be sources of ignition must be removed. [6] [7] [8] The materials chosen for use in the valves, joints and compressors must be oxygen compatible: they must not burn or degrade readily in high oxygen environments. [8]
A jonline can also be used to tether the diver's equipment to the dive boat before or after the dive. This helps the diver to put on or take off the equipment while in the water without drifting away from the boat. It is similar to a buddy line, which is used to tether two divers together during a dive. [39] [41]