What Is a Normal Blood Oxygen Level during Exercise?
A healthy person’s, blood oxygen level normally ranges between 95% – 100%. This number tells you what percentage of hemoglobin in your blood is currently carrying oxygen and is able to deliver oxygen to your brain, organs and muscles. For smokers, their normal blood oxygen level is generally lower, around 90%. Medically speaking, 90% is the breakpoint for what is considered normal blood oxygen levels. Anything below 90% is considered hypoxemia. Being in a state of hypoxemia for a prolonged period can make you hypoxic, which means your body is being deprived of adequate oxygen to maintain function. Hypoxia can produce symptoms such as headaches, nausea, fatigue, shortness of breath, and in severe cases, can be fatal.
