How to choose medical oxygen concentrator according to flow

　　When purchasing a medical oxygen concentrator, be sure to check the "flow" capacity. The oxygen concentrator must be used according to the doctor's prescription the doctor will recommend the flow rate in liters per minute (LPM) based on the patient's condition and how much supplemental oxygen therapy is needed. The flow rate of some medical oxygen concentrators may be in the range of 250 to 750 milliliters per minute, while the flow rate of other oxygen concentrators may be in the range of 2 to 10 liters per minute. It is recommended to select equipment with a capacity greater than necessary-for example if 3.5 LPM is required, then a medical oxygen concentrator with a flow rate of 5 LPM is selected.

　　There are mainly two types of medical oxygen concentrators-large medical oxygen concentrators, which cannot move around and provide more oxygen, and small oxygen concentrators, which can be transported during travel and used outdoors. The medical oxygen concentrator usually weighs between 2 to 4 kg, and provides pulse flow and continuous flow modes, depending on personal needs and doctor's recommendations. The pulse flows portable oxygen generator only supplies oxygen when the patient inhales. Regardless of the patient's breathing, the continuous flow oxygen generator supplies oxygen at a constant rate.

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