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  2. Aqua-Lung - Wikipedia

    en.wikipedia.org/wiki/Aqua-Lung

    Aqua-Lung [1] was the first open-circuit, self-contained underwater breathing apparatus (or "scuba") to achieve worldwide popularity and commercial success. This class of equipment is now commonly referred to as a twin-hose diving regulator , [ 2 ] or demand valve .

  3. Scuba set - Wikipedia

    en.wikipedia.org/wiki/Scuba_set

    The word SCUBA was coined in 1952 by Major Christian Lambertsen who served in the U.S. Army Medical Corps from 1944 to 1946 as a physician. [1] Lambertsen first called the closed-circuit rebreather apparatus he had invented "Laru", an (acronym for Lambertsen Amphibious Respiratory Unit) but, in 1952, rejected the term "Laru" for "SCUBA" ("Self-Contained Underwater Breathing Apparatus"). [2]

  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. Self-contained breathing apparatus - Wikipedia

    en.wikipedia.org/wiki/Self-contained_breathing...

    Elastomeric masks linked to backpack air tanks: self-contained breathing apparatus, worn by firefighters advancing with a firehose. There are two major application areas for SCBA: firefighting, and industrial use in confined spaces. [20] For SCBAs used in firefighting, manufacturers typically prioritize fire resistance and weight reduction over ...

  6. Diving lizard’s built-in ‘scuba tank’ allows it to breathe ...

    www.aol.com/diving-lizard-built-scuba-tank...

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  7. Breathing apparatus - Wikipedia

    en.wikipedia.org/wiki/Breathing_apparatus

    The major categories of ambient pressure underwater breathing apparatus are: Scuba set, any breathing set that is carried entirely by an underwater diver and provides the diver with breathing gas at the ambient pressure: [31] Open circuit scuba, where the diver carries the gas supply, and exhaled gas is exhausted to the environment [9]

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