Oxygen gas generators, also known as oxygen concentrators, are machine devices designed to provide high concentrations of oxygen to those undergoing therapy treatments. They can also be used in industrial environments. Another type of generator that uses a canister container can be found on airplanes, space stations and submarines. The type used for oxygen therapy recycles oxygen from the air in the environment. The smaller canister containers use sodium chlorate pellets to create oxygen. When the sodium chlorate is burned, it naturally gives off oxygen. An igniter switch is used to start this combustion process.
Another material capable of giving off oxygen when it is burned is potassium chlorate. The use of chemical conversion processes as generators, as opposed to just storing oxygen inside tanks is a more efficient mode of delivery capable of generating at least five times more oxygen than a storage tank device. Depending on the desired use, both concentrators and conversion devices are preferred to the oxygen tank apparatus.
Oxygen gas generators concentrate the oxygen available in the environment by using a filtration system that separates air components and leverages their individual physical properties. These devices are made up of a compressor mechanism, sieves or filters and a concentrator. The machine draws the air in through a series of filters which lead to a column designed to separate the different chemicals in the air. This column contains a substance called zeolite that grabs onto the nitrogen particles in the air while allowing oxygen molecules to pass through.
A second column space inside the generator works to blow back against the zeolite filter and send its nitrogen particles back into the air. The second column also works to receive some of the oxygen molecules that pass through the first column. Some of these molecules are also blown back through the first column. In effect, these two columns cycle through this process over and over again. From there a reservoir chamber receives the concentrated oxygen molecules and sends them through a flow control system that determines how much oxygen a patient receives.
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