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2. Diving cylinder - Wikipedia

   en.wikipedia.org/wiki/Diving_cylinder

   "Scuba tank" or "diving tank" is more often used colloquially by non-professionals and native speakers of American English. The term " oxygen tank " is commonly used by non-divers; however, this is a misnomer since these cylinders typically contain (compressed atmospheric) breathing air, or an oxygen-enriched air mix .

3. Surface-supplied diving equipment - Wikipedia

   en.wikipedia.org/wiki/Surface-supplied_diving...

   Thus, the surface-supplied diver is less likely to have an "out-of-air" emergency than a scuba diver using a single gas supply, as there are normally two alternative breathing gas sources available. Surface-supplied diving equipment usually includes communication capability with the surface, which improves the safety and efficiency of the ...

4. Testing and inspection of diving cylinders - Wikipedia

   en.wikipedia.org/wiki/Testing_and_inspection_of...

   Blowdown silencer for emptying scuba cylinders Before internal inspection the valve must be removed after depressurising and verifying that the valve is open. Cylinders containing breathing gases do not need special precautions for discharge except that high oxygen fraction gases should not be released in an enclosed space because of the fire ...

5. Underwater breathing apparatus - Wikipedia

   en.wikipedia.org/wiki/Underwater_breathing_apparatus

   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 ...

6. Diving air compressor - Wikipedia

   en.wikipedia.org/wiki/Diving_air_compressor

   A small scuba filling and blending station supplied by a compressor and storage bank A low pressure breathing air compressor used for surface supplied diving at the surface control point A diving air compressor is a breathing air compressor that can provide breathing air directly to a surface-supplied diver, or fill diving cylinders with high ...

7. Surface-supplied diving - Wikipedia

   en.wikipedia.org/wiki/Surface-supplied_diving

   Surface-supplied diver at the Monterey Bay Aquarium, Monterey, California US Navy Diver using Kirby Morgan Superlight 37 diving helmet [1]. Surface-supplied diving is a mode of underwater diving using equipment supplied with breathing gas through a diver's umbilical from the surface, either from the shore or from a diving support vessel, sometimes indirectly via a diving bell. [2]