While a blood oxygen saturation level of 100% is considered normal for healthy individuals at sea level, it's not actually possible to have 100% blood oxygen. This is because the human body can only use enough oxygen to reach an oxygen saturation of 100%. Even with pure oxygen, our bodies cannot absorb more than 100% of the available hemoglobin.
The normal range for blood oxygen saturation is between 95% and 100%. However, it's important to remember that this is just a guideline, and individual levels may vary slightly. If you have any concerns about your blood oxygen levels, it's always best to speak to a healthcare professional.
