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  • Devices designed to assess the performance of oxygen concentrators. Oxygen concentrators produce an oxygen-rich gas mixture by drawing in available room air and extracting the nitrogen from it. These testers measure, evaluate, display, and may also record, a set of the concentrator output characteristics (e.g., the oxygen percentage of delivered gas, the output pressure [typically in kPa or psi], and the output flow rate in liter/min). Most testers are microprocessor driven and include a display. Oxygen concentrator testers are intended to check the status of single-patient devices that are used to provide long-term oxygen therapy to patients at home and in healthcare facilities (e.g., nursing homes).
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