Question

the importance of the rebreather mask to maintain inflation

Answer 1

1) ans) Rebreather mask has a plastic reservoir bag that saves one-third of a person's exhaled air, while the rest of the air gets out via side ports covered with a one-way valve. This allows the person to re-breath some of the carbon dioxide, which acts as a way to stimulate breathing.

The reservoir bag is connected to an oxygen tank. The mask covers both your nose and mouth. One-way valves prevent exhaled air from reentering the oxygen reservoir.
The term “re-breather mask”, is a misnomer, and doesn’t actually exist. It’s extremely important that the liter-flow is never set lower than 5 L/min on any of these types of masks, because you need that much to flush exhaled CO2 from the mask, otherwise, the patient will re-breathe their own exhaled CO2. One old trick, however, that I learned as an EMT, is you can do, with a patient who is hyperventilating, is to put the patient on a non-rebreather mask for a few minutes, with the O2 turned off, to intentionally get their CO2 up. Of course, you need to be sure that the patient is actually hyperventilating, and not in respiratory distress from another cause.Although Rebreather s are frequently thought of as best used in technical diving, I feel they have greatly enhanced my recreational diving as well.” But ask any Rebreather diver — especially the experts tapped here and they'll tell you it's totally worth it
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