Oxygen is a basic human need. We would not survive without it. The air that we breathe accounts for around 21% oxygen. It can be
sufficient for most people with healthy lungs, but for some people with certain health conditions whose lung function is impaired,
the amount of oxygen that is obtained through normal breathing is not enough. Oxygen concentration can separate oxygen and nitrogen
molecules from each other for generation of oxygen. This concentrates the oxygen in the compressed air without the need of adding
chemicals.
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