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A portable oxygen concentrator (POC) is a device used to provide oxygen therapy to people that require greater oxygen concentrations than the levels of ambient air. It is similar to a home oxygen concentrator (OC), but is smaller in size and more mobile. They are small enough to carry and many are now FAA-approved for use on airplanes.
Above approximately 4,300 m (14,000 ft) oxygen-rich breathing mixture is required to approximate the oxygen available in the lower atmosphere, [4] while above 12,000 m (40,000 ft) oxygen must be provided under positive pressure. Above 15,000 m (49,000 ft), respiration is not possible because the pressure at which the lungs excrete carbon ...
Oxygen tanks are used to store gas for: medical breathing (oxygen therapy) at medical facilities and at home (high pressure cylinder) breathing at altitude in aviation, either in a decompression emergency, or constantly (as in unpressurized aircraft), usually in high pressure cylinders; oxygen first aid sets, in small portable high pressure ...
Medical oxygen concentrators are used in hospitals or at home to concentrate oxygen for patients. [8] PSA generators provide a cost-efficient source of oxygen. They are a safer, [9] less expensive, [10] and more convenient alternative to tanks of cryogenic oxygen or pressurised cylinders. They can be used in various industries, including ...
Closed and semi-closed circuit breathing sets, also known as rebreathers and gas extenders, are breathing apparatus that absorb the carbon dioxide from, and add oxygen to, a user's exhaled breath, allowing unused oxygen and diluent (if present) to be recycled. A rebreather system may be used for any application of a supplied gas breathing set.
Some types are also referred to as a compressed air breathing apparatus (CABA) or simply breathing apparatus (BA). Unofficial names include air pack, air tank, oxygen cylinder or simply pack, terms used mostly in firefighting. If designed for use under water, it is also known as a scuba set (self-contained underwater breathing apparatus).
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