The best pulse oximeters can help in detecting the oxygen saturation levels in the body very easily and quickly. During the COVID-19 pandemic, a pulse oximeter is recommended to be used for keeping a track of the SpO2 levels. While an oximeter does not help in detecting if a person is COVID positive, it does help in the early detection of hypoxemia which is one of the primary COVID-19 symptoms and causes breathing issues. Now, some of you may be thinking how to use an oximeter to measure the SpO2 levels correctly? A pulse oximeter is clipped to a person’s fingertip and it provides a reading of the SpO2 levels which is often accurate upto +-2 or +- 3 percent. It should be noted that a reading above 95 percent is considered normal while a reading below 92 should be a cause of concern. Using a pulse oximeter is fairly an easy task, all you need to do is clip it onto the index or middle finger and it will start measuring the blood oxygen saturation levels of the person. There are many