Bailout bottle
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A bailout bottle or, more formally, bailout cylinder is a scuba cylinder carried by an underwater diver for use as an emergency supply of breathing gas in the event of a primary gas supply failure. A
Filling a spare air bailout cylinder
Solo scuba diver with sling mounted 5.5 litre (40 cu ft) aluminium bailout cylinder
A pony bottle strapped to the back cylinder
Surface-supplied divers riding a diving stage. Each carries a scuba bailout cylinder on his back.
Diving rebreather
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A diving rebreather is an underwater breathing apparatus that absorbs the carbon dioxide of a diver's exhaled breath to permit the rebreathing of the substantially unused oxygen content, and unused in
Bailout bottle
…smaller cylinder with a combined first and second stage integrated with the cylinder valve, known as "Spare air", after a well known example of the type. Rebreathers also have bailout systems, often including an open-circuit bailout bottle. The purpose of the bailout cylinder is to provide a fully redundant breathing…
A fully closed circuit electronic rebreather (AP Diving Inspiration)
A simple naval-type diving oxygen rebreather with the parts labelled
Back view of an electronically controlled closed circuit technical recreational rebreather, with the casing opened
Diver with chest-mounted rebreather