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An oxygen concentrator is a device that concentrates the oxygen from a gas supply (typically ambient air) by selectively removing nitrogen to supply an oxygen-enriched product gas stream. They are used industrially, to provide supplemental oxygen at high altitudes, and as medical devices for oxygen therapy .
A lightweight portable oxygen concentrator: Inogen One G3 (2,2 kg) Sequal Equinox, transportable concentrator with a high oxygen flow rate 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.
Supply companies include very large organizations such as Walgreens, Lincare, and Apria to smaller local companies operated by sole proprietors or families. A new evolution in the home medical equipment arena is the advent of internet retailers who have lower operating costs so they often sell equipment for lower prices than local "brick and ...
On-board oxygen generating systems (OBOGS) bleed compressed air from the engines, enrich the oxygen content by removing nitrogen using an oxygen concentrator, and regulate the supply to cabin pressure and temperature. They are continuously available and producing fresh gas when the engine is running.
Oxygen therapy, also referred to as supplemental oxygen, is the use of oxygen as medical treatment. [1] Supplemental oxygen can also refer to the use of oxygen enriched air at altitude. Acute indications for therapy include hypoxemia (low blood oxygen levels), carbon monoxide toxicity and cluster headache .
Walgreens began in 1901, when Charles Rudolph Walgreen purchased a small food front store on the corner of Bowen and Cottage Grove Avenues in Chicago, where he had worked as a pharmacist. [6] His energy and enthusiasm soon led to new ideas and ambitious expansion. For example, he manufactured his own line of drug products to ensure high quality ...