An oxygen concentrator is a device that filters ambient air to provide the user with an uninterrupted flow of highly concentrated oxygen.


A compressor pulls in air and raises the air pressure in order to prepare the oxygen and nitrogen for filtration. The compressed air is then delivered to one of two airtight cylinders, where it is passed through a special, porous filter called zeolite. When compressed air is passed through the zeolite, the nitrogen molecules chemically bond to the zeolite while the oxygen flows through unimpeded to the user.


The machine enables a continuous flow of oxygen to the user by alternating the use of each cylinder.