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2. Self-contained breathing apparatus - Wikipedia

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

   An open-circuit rescue or firefighting SCBA has a full-face mask, also called the face-piece, a demand regulator, air cylinder, pressure gauge, (sometimes with an integrated PASS device), and a harness with adjustable shoulder straps and waist belt which lets it be worn on the back. The air cylinder is commonly 4 liter, 6 liter, or 6.8 liter ...

3. Bag valve mask - Wikipedia

   en.wikipedia.org/wiki/Bag_valve_mask

   A bag valve mask can be used without being attached to an oxygen tank to provide "room air" (21% oxygen) to the patient. However, manual resuscitator devices also can be connected to a separate bag reservoir, which can be filled with pure oxygen from a compressed oxygen source, thus increasing the amount of oxygen delivered to the patient to ...

4. 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.

5. Ask the Captain: Why doesn't the emergency oxygen mask bag ...

   www.aol.com/news/ask-captain-why-doesnt...

   This week, Capt. John Cox explains how the emergency oxygen mask system works and how pilots know how much runway is left. Ask the Captain: Why doesn't the emergency oxygen mask bag inflate ...

6. Non-rebreather mask - Wikipedia

   en.wikipedia.org/wiki/Non-rebreather_mask

   The NRB has an attached reservoir bag, typically one liter, that connects to an external oxygen tank or bulk oxygen supply system. Before an NRB is placed on the patient, the reservoir bag is inflated to greater than two-thirds full of oxygen, at a rate of 15 liters per minute (lpm). [1]

7. Lambertsen Amphibious Respiratory Unit - Wikipedia

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

   Two large lengthways backpack mounted cylinders under a hard metal cover: the right cylinder is high pressure oxygen and the left is the cylindrical absorbent canister. Fullface mask with two small viewports like an old-type gasmask; Two counterlungs, one on each shoulder.