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What should your oxygen saturation be? What are normal and safe oxygen levels? How does a finger pulse oximeter work? Learn about blood oxygen levels, symptoms of low oxygen (hypoxemia), and ways to keep your blood oxygen levels in the normal range, with charts.
Your blood oxygen level (blood oxygen saturation) is the amount of oxygen that's circulating in your blood. It can be measured with a blood test or a pulse oximeter.
A normal range for your blood oxygen level is between 92% and 100%. SpO2 readings can fluctuate based on activity, overall health, and other factors. Your body relies on a coordinated effort between your heart, lungs, and circulatory system to maintain a healthy blood oxygen level.
A healthy blood oxygen level is 75–100 mm Hg, or 95–100%. Low blood oxygen levels, known as hypoxemia, may be a cause for concern.
Oxygen saturation levels (SpO2) between 95 to 100 percent are considered normal for both adults and children (below 95% is considered abnormal). People over 70 years of age may have oxygen levels closer to 95%.
Blood oxygen levels refer to the amount of oxygen circulating in the blood. Normal blood oxygen levels fall between 75 and 100 millimeters of mercury (mm Hg) on arterial blood gas...
A normal blood oxygen saturation level is in the range of 95–100%. If it falls below 91%, it requires immediate medical attention. Doctors consider a reading of 91–94% as borderline.
It is commonly referred to as a type of oxygen saturation that exceeds normal blood oxygen levels, and it typically occurs in patients exposed to high O2 pressures. Sometimes, people with low blood oxygen can also develop this condition by receiving additional oxygen through oxygen therapy.
Blood oxygen levels measure the amount of oxygen in the blood. Normal oxygen saturation levels vary slightly from person to person, but they generally range between 95% to 100%.
Normal blood oxygen levels in adults are between 95% and 100% oxygen saturation (pulse oximeter reading). See a healthcare provider if your at-home blood oxygen measurement is 93% to 94%.