What Is Medical Grade Oxygen and Why Do I Need an RX?
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Medical-grade oxygen contains a high enough oxygen purity to treat conditions that lower blood-oxygen levels. The oxygen purity level is determined by the amount of other gases mixed with the oxygen. And although we breathe oxygen from the air around us, we only breathe about 21% oxygen. Air also contains about 78% nitrogen and a small percentage of other gases.
For people with healthy lungs, 21% oxygen is sufficient. However, certain medical co