Normal Oxygen Level in Human Body :- The normal oxygen value level is 97–100% (OER #1). Older adults typically have lower oxygen value levels than younger adults. For sample, someone older than 70 years of age may have an oxygen value level of about 95%, which is an acceptable level . Normal blood oxygen levels for healthy adults are between 95% and 100% . Hypoxemia symptoms include shortness of breath, fatigue, and bluish-colored skin. Respiratory infections, lung disease,... 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 (ABG) test... For most healthy individuals, a normal blood oxygen level (SpO2) is between 95% and 100% , regardless of age. Newborns are an exception. For the first few minutes of life, a level between 90% to 95% is considered normal, but it should quickly rise to the 95% to 100% range.
