![Average Average](/uploads/1/2/5/5/125579780/423999063.jpg)
![Average Resting Prbm Average Resting Prbm](/uploads/1/2/5/5/125579780/145021180.jpg)
What Is a Normal Resting Blood Oxygen Level? Maintaining a normal blood oxygen level is critical to maintaining the metabolic functions of the body on a daily basis. Oxygen, as you know, is essential to life and when cells are deprived of oxygen, they will eventually die.