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Closed circuit rebreather: A closed circuit rebreather adds oxygen to the loop gas to make up for oxygen used by metabolic processes. These processes do not use diluent gas, so none is added unless the volume of the loop is reduced for other reasons, such as intentional dumping, flushing, or an ambient pressure change.
partial rebreather mask A partial rebreather mask is an orinasal mask used for oxygen therapy for people who are spontaneously breathing. It allows full flow from the reservoir bag during inhalation, but only allows exhaled gas from the anatomical dead space where no gas exchange has occurred to reenter the reservoir bag during exhalation, The ...
Both types of mask masks use a reservoir bag which can economise on oxygen consumption when the flow rate is set correctly for the current breathing rate by ensuring that the reservoir bag fully deflates at the end of inhalation and fully inflates by the end of exhalation. Some field user maintenance is possible using the spare parts kit.
A Diving rebreather is an underwater breathing apparatus that absorbs the carbon dioxide of a diver's exhaled breath to permit the rebreathing (recycling) of the substantially unused oxygen content, and unused inert content when present, of each breath.
A system which accumulates free-flow oxygen during resting and exhalation stages, (reservoir cannulas, partial rebreather masks and non-rebreather masks) makes a larger part of the oxygen available for inhalation, and it will be selectively inhaled during the initial part of inhalation, which reaches furthest into the lungs, and may also ...
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 ...
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