Respironics Everflo Oxygen Concentrator

Oxygen tank.JPG

An oxygen tank is an oxygen storage vessel which contains liquid oxygen or oxygen held under pressure in gas cylinders

 

It uses almost the same equipment as the oxygen concentrator ( nasal cannula and tubing). But instead of producing the oxygen from the environment it takes the oxygen from the tank.

 

Unlike the oxygen concentrator, it has a finite amount of oxygen and needs to be replaced once the tank is empty.