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Can 100% oxygen be used for open circuit bailout from a CCR rebreather?

April 26, 2017bailout CCR circuit oxygen rebreather Used

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Can 100% oxygen be used for open circuit bailout from a CCR rebreather?

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CCR diving to 40 m with minimal decompression diving, as per Entry Level rebreather qualifications, do not necessarily warrant the use of open circuit oxygen for emergency purposes. However, if the mixed gas certified rebreather diver chooses to have access to any or all gases carried, whether on-board or off-board, appropriate safeguards should be utilised to avoid inadvertent gas loss and incorrect selection of gas for maximum operating depth.