Oxygen Concentrator

https://www.cantamedical.com/products/oxygen-concentrator/

The oxygen concentrator is an electronic device that removes nitrogen from room air by PSA principles, increasing the oxygen concentration to above 90%; widely used by patients and old people who require long-term oxygen. The oxygen concentrator has become smaller, lighter and more functional, easier, and even more portable to bring outdoors these years. Contact Canta, one of the professional oxygen concentrator companies, for oxygen concentrator price.