What Blood Oxygen Levels Say About Your Breathing
Feb 3, 2026 · Normal blood oxygen levels range from 95% to 100%. SpO2 can vary with activity, health, and more. Your heart, lungs, and circulatory system work together to keep these levels stable. …
What does SpO2 mean? What is a normal SpO2 level? - Withings
Normal SpO2 values vary between 90 and 100%. Good blood oxygenation is necessary to supply the energy your muscles need in order to function, which increases during a sports activity. If your SpO2 …
Normal Blood Oxygen Levels Chart: Symptoms of Low Oxygen Level
Sep 25, 2025 · Normal oxygen levels (SpO2) are between 95% and 100%, indicating an adequate concentration of oxygen in the bloodstream. Levels below 90% are low (hypoxemia) and may often …
Blood Oxygen Level: What It Is & How To Increase It
An oximeter reading only indicates what percentage of your blood is saturated with oxygen, known as the SpO2 level, as well as your heart rate. It’s a quick and harmless way to check if someone’s blood …
What Is a Good Oxygen Rate by Age? - eMedicineHealth
Normal oxygen saturation levels (SpO2) are between 95 to 100 percent for both adults and children. Oxygen saturation levels below 95% are considered abnormal, and the brain may be affected when …
Oxygen saturation (medicine) - Wikipedia
Oxygen saturation is the fraction of oxygen -saturated hemoglobin relative to total hemoglobin (unsaturated + saturated) in the blood. The human body requires and regulates a very precise and …
What is SpO2? Normal SpO2 Levels, Ranges & When to Worry
Feb 6, 2026 · SpO2 (peripheral capillary oxygen saturation) measures the percentage of oxygen-carrying hemoglobin in your blood. A normal SpO2 level is 95–100% for healthy adults.
What Does SpO2 Stand For and What Is a Normal Level?
Dec 5, 2025 · For a healthy adult at sea level, a normal SpO2 reading falls between 95% and 100%. This range indicates that the lungs are performing gas exchange efficiently and the blood is …
Pulse Oximeter Readings Explained: What Numbers Are Normal and …
Feb 13, 2026 · Learn what pulse oximeter readings mean, how to get accurate measurements, and when to seek help for low oxygen levels during colds and respiratory illness.
SpO2 Meaning: Understanding Oxygen Saturation and Its Importance
SpO2, or peripheral oxygen saturation, is a measure of the percentage of oxygen-saturated hemoglobin in the blood compared to the total hemoglobin. In simpler terms, it indicates how effectively oxygen is …