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wet bells are used for air and mixed gas, and divers can decompress on oxygen at 12 m.small closed bell systems have been designed that can be easily mobilized, and include a two-man bell, a handling frame and a chamber for decompression after transfer under pressure (tup).
wet bells are used for air and mixed gas, and divers can decompress on oxygen at 12 m.small closed bell systems have been designed that can be easily mobilized, and include a two-man bell, a handling frame and a chamber for decompression after transfer under pressure (tup).