The best pulse oximeter for home use is the one that you are able to use with little difficulty.

Oximeters offer those who need it—people with COPD, congestive heart failure, asthma, and other pulmonary diseases— a feasible way to monitor oxygen saturation levels. If your doctor prescribes you oxygen, you’ll need to administer & monitor oxygen levels. The pulse oximeter measures the oxygen saturation level of your blood and tells you what your level is so that you can adjust your oxygen accordingly.

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