An oxygen concentrator is a medical device used to deliver oxygen to people with breathing-related diseases. People with lower-than-normal oxygen levels in their blood often need an oxygen concentrator to replace oxygen.

　　Oxygen concentrators filter the surrounding air, compress it to the desired density, and deliver purified medical-grade oxygen to the patient in a pulsed dose delivery system or continuous flow system.

　　Think of an oxygen concentrator as a window air conditioner - it draws in air, changes it and delivers it in different forms. Oxygen concentrators draw in air and purify it for use by individuals who need medical oxygen due to low oxygen levels in their blood.

　　The working principle of the oxygen concentrator is:

　　1. Oxygen concentrator compresses air as a cooling mechanism to prevent overheating of the concentrator 2. Air is drawn in from the surroundings 3. Delivery settings are adjusted using the electronic interface 4. Nitrogen is removed from the air through sieve beds and filters 5. Oxygen concentrator through a mask or Nasal cannula to deliver purified oxygen