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  2. Buddy breathing - Wikipedia

    en.wikipedia.org/wiki/Buddy_breathing

    Buddy breathing is a rescue technique used in scuba diving "out-of-gas" emergencies, when two divers share one demand valve, alternately breathing from it.Techniques have been developed for buddy breathing from both twin-hose and single hose regulators, but to a large extent it has been superseded by safer and more reliable techniques using additional equipment, such as the use of a bailout ...

  3. Scuba diving therapy - Wikipedia

    en.wikipedia.org/wiki/Scuba_diving_therapy

    Scuba diving therapy is a type of treatment that consists of a variety of scuba diving activities and exercises. Essential elements are increased body awareness, social bonding, and breathing techniques. The goal is to improve physical and psychological well-being. [1]

  4. Human physiology of underwater diving - Wikipedia

    en.wikipedia.org/wiki/Human_physiology_of...

    Scuba organizations that train for diving beyond recreational depths, may forbid diving with gases that cause too much narcosis at depth in the average diver, and strongly encourage the use of other breathing gas mixes containing helium in place of some or all of the nitrogen in air – such as trimix and heliox – because helium has no ...

  5. Scuba diving - Wikipedia

    en.wikipedia.org/wiki/Scuba_diving

    Scuba diving is a mode of underwater diving whereby divers use breathing equipment that is completely independent of a surface breathing gas supply, and therefore has a limited but variable endurance. [1] The name scuba is an acronym for "Self-Contained Underwater Breathing Apparatus" and was coined by Christian J. Lambertsen in a patent ...

  6. Scuba skills - Wikipedia

    en.wikipedia.org/wiki/Scuba_skills

    The instructor monitors a trainee practicing diving skills. Scuba skills are skills required to dive safely using self-contained underwater breathing apparatus, known as a scuba set. Most of these skills are relevant to both open-circuit scuba and rebreather scuba, and many also apply to surface-supplied diving. Some scuba skills, which are ...

  7. Rebreather diving - Wikipedia

    en.wikipedia.org/wiki/Rebreather_diving

    The diver should keep breathing constantly to maintain consistent gas flow at moderate flow velocities over the carbon dioxide absorbent, so the absorbent can work most effectively. Divers need to lose any skip-breathing habits that may have been developed while diving with open-circuit scuba. In closed circuit rebreathers, constant moderate ...

  8. Underwater diving - Wikipedia

    en.wikipedia.org/wiki/Underwater_diving

    In ambient pressure diving, the diver is directly exposed to the pressure of the surrounding water. The ambient pressure diver may dive on breath-hold or use breathing apparatus for scuba diving or surface-supplied diving, and the saturation diving technique reduces the risk of decompression sickness (DCS) after long-duration deep dives.

  9. Diving rebreather - Wikipedia

    en.wikipedia.org/wiki/Diving_rebreather

    The semi-closed rebreather systems developed by Drägerwerk in the early 20th century as a scuba gas supply for Standard diving dress, using oxygen or nitrox, and the US Navy Mark V Heliox helmet developed in the 1930s for deep diving, circulated the breathing gas through the helmet and scrubber by using an injector system where the added gas ...

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