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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.
An oxygen concentrator takes in air and removes nitrogen from it, leaving an oxygen-enriched gas for use by people requiring medical oxygen due to low oxygen levels in their blood. [4] Oxygen concentrators provide an economical source of oxygen in industrial processes, where they are also known as oxygen gas generators or oxygen generation plants.
The endurance of the cylinder can be calculated from the volume, pressure and breathing rate of the user. The formula: volume (in liters) × pressure (in bars) / 40 (litres per minute) - 10 minutes (the 10 minutes is a safety margin, or reserve), so a 6-liter cylinder, of 300 bar, is 6 × 300 / 40 - 10 = 35 minutes working duration.
Many people only require slight increases in inhaled oxygen, rather than pure or near-pure oxygen. [67] These requirements can be met through a number of devices dependent on situation, flow requirements, and personal preference. A nasal cannula (NC) is a thin tube with two small nozzles inserted into a person's nostrils. It can provide oxygen ...
Some of the portables are actually less efficient in terms of power and weight than the larger 5 LPM concentrators. The pulse portable oxygen concentrators (those which have no continuous flow settings) typically make less than 1 liter per minute, but use demand or pulse flow to deliver oxygen only when the patient is inhaling and consume about ...
Medical use liquid oxygen airgas tanks are typically 2.4 MPa (350 psi). [citation needed] All equipment coming into contact with high pressure oxygen must be "oxygen clean" and "oxygen compatible", to reduce the risk of fire. [3] [4] "Oxygen clean" means the removal of any substance that could act as a source of ignition. "Oxygen compatible ...