Regular air contains only about 21% oxygen. While using our oxygen concentrator you are able to receive up to 95% pure oxygen. The oxygen is delivered to you through a nasal cannula, a thin tube that runs from the device to your face, giving you purified oxygen through two open prongs below your nostrils. An oxygen concentrator isn't the same as an oxygen tank, which delivers liquid or gas oxygen. Instead, the concentrator is a machine that takes in air, purifies it and then distributes the newly formed air. Before it goes into the concentrator, air is made up of about 80% nitrogen. An oxygen concentrator purifies that air then it comes out as 90-95% pure oxygen delivered to the patient. Oxygen is not just for unhealthy people. Anyone wanting to enhance their own wellness can benefit from oxygen. Oxygen gives the body the ability to rebuild itself, detoxify blood and strengthen the immune system.