Oxygen is a lifesaving therapeutic medical gas for people suffering from severe pneumonia and other respiratory diseases, like COVID-19.  

An oxygen concentrator is an electricity-powered medical device that first takes in air, removes nitrogen, and then delivers a continuous source of concentrated oxygen to a patient requiring respiratory support. They are convenient for users and health-care workers because they are easy to move. One oxygen concentrator can simultaneously serve 4 persons.

Oxygen concentrators support the treatment of pneumonia in children – one of the key causes of death among children under 5 – and hypoxemia, which is a major predictor of mortality. Oxygen are also used in emergency obstetric (childbirth) care situations, surgery and anaesthesia.