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  2. Built-in breathing system - Wikipedia

    en.wikipedia.org/wiki/Built-in_breathing_system

    Navy divers testing the built-in breathing masks inside a recompression chamber. A built-in breathing system is a source of breathing gas installed in a confined space where an alternative to the ambient gas may be required for medical treatment, emergency use, or to minimise a hazard.

  3. Breathing apparatus - Wikipedia

    en.wikipedia.org/wiki/Breathing_apparatus

    The emergency oxygen supplied to passengers in commercial airliners that have lost cabin pressure is also a basic form of built-in breathing system, where the oxygen is generated and supplied as a constant flow for a limited period, which should be sufficient to allow the aircraft to safely descend to an altitude where the ambient air oxygen ...

  4. Emergency Air Breather - Wikipedia

    en.wikipedia.org/wiki/Emergency_Air_Breather

    An EAB usage demonstration on board the USS Helena (SSN-725). An Emergency Air Breather (EAB) is a device used on board U.S submarines in emergencies when the internal atmosphere is, or potentially is, unsuitable for breathing.

  5. Diving chamber - Wikipedia

    en.wikipedia.org/wiki/Diving_chamber

    A diving chamber is a vessel for human occupation, which may have an entrance that can be sealed to hold an internal pressure significantly higher than ambient pressure, a pressurised gas system to control the internal pressure, and a supply of breathing gas for the occupants. [1] There are two main functions for diving chambers:

  6. Hyperbaric treatment schedules - Wikipedia

    en.wikipedia.org/wiki/Hyperbaric_treatment_schedules

    To minimize the requirement for venting, oxygen-rich treatment gases are usually provided to the patient by built in breathing system (BIBS) masks, which vent exhaled gas outside the chamber. BIBS masks are provided with straps to hold them in place over the mouth and nose, but are often held in place manually, so they will fall away if the ...

  7. Lambertsen Amphibious Respiratory Unit - Wikipedia

    en.wikipedia.org/wiki/Lambertsen_Amphibious...

    Lambertsen designed the LARU while a medical student and demonstrated the LARU to the Office of Strategic Services (OSS) (after already being rejected by the U.S. Navy) in a pool at the Shoreham Hotel in Washington D.C. in 1942 [3] [4] The OSS "Operational Swimmer Group" was formed and Lambertsen's responsibilities included training and developing methods of combining self-contained diving and ...

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