walking, running, sleeping, and doing various physical activities. Breathing slows when you sleep, so it's normal for your oxygen level to drop, but it should remain in a healthy range.3
the penetrating or reflected light intensity changes. In this way, the pulse can be detected. Today, such a PPG sensor is usually installed not only in pulse oximeters (e.g. finger clips, in-ear sensors) but also in fitness wristbands. In pulse oximetry, the functionaloxygen saturation(SpO2...
Your “Normal” SpO2 Range According to the Mayo Clinic, normal pulse oximeter readings usually range from 95 to 100 percent. Values under 90 percent are considered low, and indicate the need for supplemental oxygen. This condition is often referred to as hypoxemia, and its symptoms include seve...
At an in-person checkup, the doctor or nurse usually puts a pulse oximeter on your finger to measure blood oxygen levels (SpO2) which can be a sign of COVID-19 as well as other respiratory issues, but you can buy your own pulse oximeter like theZacurate 500BLfor as little as $15. ...