What is the acceptable oxygen saturation level for a healthy adult?

The acceptable oxygen saturation level for a healthy adult typically falls within the range of 95% to 100%. This range indicates that the blood is adequately saturated with oxygen, allowing for efficient transportation of oxygen to the tissues and organs, which is essential for maintaining overall health and proper physiological function.

Oxygen saturation levels below 95% can indicate potential hypoxemia, which may require medical attention, especially if levels drop significantly lower. Conversely, levels surpassing 100% are not physiological and suggest an error in measurement since blood oxygen saturation cannot exceed the complete binding capacity of hemoglobin. Thus, the range of 95% to 100% is critical for determining the respiratory and circulatory health of individuals.