![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Home_oxygen_concentrator.jpg/640px-Home_oxygen_concentrator.jpg&w=640&q=50)
Oxygen concentrator
device which removes nitrogen from air / From Wikipedia, the free encyclopedia
An oxygen concentrator is a machine that takes in air and takes out some of the nitrogen (as N2) so there is more oxygen (as O2). This new air with more oxygen is then given to a patient during oxygen therapy.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Home_oxygen_concentrator.jpg/640px-Home_oxygen_concentrator.jpg)