An oxygen concentrator is a medical device that separates nitrogen from the air around you and provides you with air that is 90%-95% pure oxygen
. It is prescribed by a doctor for patients who have a health condition that causes their oxygen level to drop, such as asthma, lung cancer, COPD, the flu, or COVID-19
. There are two types of oxygen concentrators: a bigger model for home use and a lighter, portable model
. The concentrator is not the same as an oxygen tank, which delivers liquid or gas oxygen
. Instead, it pulls in the air around you and filters out the nitrogen. A thin tube runs from the device to your face, giving you purified oxygen through two open prongs below your nostrils
. It is important to get a doctor's prescription and guidance before using an oxygen concentrator, as using one without proper guidance can be dangerous
