Simply put, EWOT (pronounced e-watt) Exercise With Oxygen Therapy is breathing higher levels of oxygen during exercise. You can use an exercise bike, treadmill, elliptical, or whatever you’re comfortable with. Breathing higher levels of oxygen during exercise can increase strength, endurance, and stamina. You can go longer with greater power. This means a more efficient workout in the same time frame. In addition, the body works better when your blood is rich in oxygen.