Normal oxygen level in human body: Normal blood oxygen levels for healthy adults

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,... 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 . Understand why oxygen levels in the blood are important, what low levels mean, and when you should see a doctor for proper diagnosis and care.