Pulse oximeters measure the percentage of oxygen in the blood when clipped onto a fingertip.<br />And according to HuffPost, they're becoming increasingly popular for home use.<br />People are buying them to monitor a family member if he or she becomes seriously ill with COVID-19.<br />Doctors praise the use of pulse oximeters because they can alert people who don’t realize they’re gravely ill to the fact that their body is struggling for oxygen.<br />One of the biggest worries with COVID-19 is when someone doesn’t realize their oxygen levels have dropped because they don’t actually feel unwell.<br />It's a phenomenon sometimes referred to as happy hypoxia or silent hypoxia.<br />As a normal reading usually ranges from 95-100%, if your reading is under 95%, it's a red flag. Seek medical attention immediately.
