Which of the following statements is/are correct with reference to the oxygen concentrator?

Which of the following statements is/are correct with reference to the oxygen concentrator?

A. It is a device that used by Astronaut.

B. It is a device that usually used in Submarine.

C. It is a medical device that concentrates oxygen from ambient air.

D. It is a highly advanced device that can used to purify the oxygen in polluted city.

Explanation:

Kolkata Municipal Corporation (KMC) will purchase oxygen concentrators for using them for Covid patient treatment in the Safe Homes across the city. The city has been witnessing a steep rise in Covid cases since the past few days with the number of daily cases breaching the 2500-mark. With oxygen cylinders in short supply across several states, the Oxygen concentrator is among the most sought after devices for oxygen therapy, especially among patients in home isolation and for hospitals running out of oxygen. An oxygen concentrator is a medical device that concentrates oxygen from ambient air.