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2. Diving air compressor - Wikipedia

   en.wikipedia.org/wiki/Diving_air_compressor

   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-pressure air pure enough to be used as a hyperbaric breathing gas. A low pressure diving air compressor usually has a delivery pressure of up to 30 bar, which is regulated to suit the ...

3. Surface-supplied diving equipment - Wikipedia

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

   Various national standards for breathing air quality may apply. Power for portable compressors is usually a 4-stroke petrol (gasoline) engine. Larger, trailer mounted compressors, may be diesel powered. Permanently installed compressors on dive support boats are likely to be powered by 3-phase electric motors.

4. 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 ...

5. The 10 Best Air Compressors for Pros and DIYers - AOL

   www.aol.com/lifestyle/10-best-air-compressors...

   What to Know About Air Compressors. Portable air compressors, like their larger predecessors, are relatively simple machines comprised of two main components: an electric pump and an air-storage tank.

6. Surface-supplied diving - Wikipedia

   en.wikipedia.org/wiki/Surface-supplied_diving

   Snuba and SASUBA – A system used to supply air from a cylinder mounted on a float to a recreational diver tethered by a short (approximately 6 m) hose through a scuba regulator. [8] Compressor diving – An even more basic system is the "Compressor diving" arrangement used in the Philippines and Caribbean for fishing. This rudimentary and ...

7. Diving cylinder - Wikipedia

   en.wikipedia.org/wiki/Diving_cylinder

   Diving cylinders should only be filled with suitably filtered air from diving air compressors or with other breathing gases using gas blending or decanting techniques. [86] In some jurisdictions, suppliers of breathing gases are required by legislation to periodically test the quality of compressed air produced by their equipment and to display ...