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  2. Halcyon PVR-BASC - Wikipedia

    en.wikipedia.org/wiki/Halcyon_PVR-BASC

    Halcyon PVR-BASC semi-closed rebreather - underside, showing gas supply connectors, hoses and manual valves, and loop drain pump Halcyon PVR-BASC semi-closed rebreather underside, showing bolts for connection to backplate

  3. Flow-restricted, oxygen-powered ventilation device - Wikipedia

    en.wikipedia.org/wiki/Flow-restricted,_oxygen...

    The device must have a pressure relief valve that opens at 60cm of water pressure to avoid over ventilation and trauma to the lungs. The (FROPVD) is contraindicated in adult patients with potential chest trauma and all children. Note: ( In cases with an apneic patient the best results will be achieved using the Two person bag-valve-mask technique.)

  4. Halcyon RB80 - Wikipedia

    en.wikipedia.org/wiki/Halcyon_RB80

    If the breathing gas supply is depleted, the dose of fresh breathing gas decreases until the breathing supply is used up. The diver will notice the decreasing volume of gas available which signals the need to switch to an independent open-circuit bailout system, which is integrated into the rebreather mouthpiece as a bailout valve, or to ...

  5. Resuscitator - Wikipedia

    en.wikipedia.org/wiki/Resuscitator

    A resuscitator is a device using positive pressure to inflate the lungs of an unconscious person who is not breathing, in order to keep them oxygenated and alive. [citation needed] There are three basic types: a manual version (also known as a bag valve mask) consisting of a mask and a large hand-squeezed plastic bulb using ambient air, or with supplemental oxygen from a high-pressure tank.

  6. Rebreather - Wikipedia

    en.wikipedia.org/wiki/Rebreather

    Draeger Ray dive/surface valve with bite grip scuba mouthpiece, non-return valves, and breathing hoses. A breathing hose or sometimes breathing tube on a rebreather is a flexible tube for breathing gas to pass through at ambient pressure. They are distinguished from the low-, intermediate-, and high-pressure hoses which may also be parts of ...

  7. Bag valve mask - Wikipedia

    en.wikipedia.org/wiki/Bag_valve_mask

    A bag valve mask (BVM), sometimes known by the proprietary name Ambu bag or generically as a manual resuscitator or "self-inflating bag", is a hand-held device commonly used to provide positive pressure ventilation to patients who are not breathing or not breathing adequately. The device is a required part of resuscitation kits for trained ...

  8. Glossary of breathing apparatus terminology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_breathing...

    A non-rebreather mask (NRB) is a device used to deliver supplemental oxygen to a spontaneously breathing person. An NRB allows the delivery of relatively high concentrations of oxygen while using a constant flow rate, with relatively low waste, by accumulating the oxygen flow during exhalation in a soft bag, to be inhaled at the start of the ...

  9. Inhaler spacer - Wikipedia

    en.wikipedia.org/wiki/Inhaler_spacer

    To administer the medication, the MDI is depressed once, resulting in the release of one dose of medication. The medication from the MDI is then suspended in the spacer's chamber while the person inhales the aerosolized medication by breathing in and out. The exhaled breath exits the device through the valves rather than entering the chamber ...

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