Oxygen Enrichment Technology:
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It is a technology that concentrates the oxygen from the air around us by selectively removing nitrogen to supply oxygen-enriched air.
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The concentrated Oxygen is delivered to the patients, having respiratory diseases, through an oxygen mask or nasal cannula.
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Uses:
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The device can be used in remote places, homes, or hospital-like facilities for patients with chronic obstructive pulmonary diseases (COPD), chronic hypoxemia and pulmonary edema.
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It may be used as an adjunct treatment for severe sleep apnea.
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Technique developed by CSIR-CMERI.
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The commercially available Oxygen Enrichment Units generally work till 8000 ft from sea level. However, this unit can work up to the altitude of 14000 ft thereby making it very handy for usage at the high altitude terrain battlefield in contingencies.
Pressure swing adsorption(PSA):
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Pressure swing adsorption(PSA) is the process by which atmospheric air passes through an internal filtration system (e.g. a molecular sieve like zeolite granules or membranes).
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This system has a large enough total surface area to separate nitrogen(N2) from the air concentrating the remaining oxygen (O2) to a known purity.