Oxygen Concentrators are medical devices that deliver almost pure oxygen through the nose via tubes. Air generally contains 21% oxygen; the rest is mostly nitrogen. Concentrators remove the nitrogen, leaving the remaining air 87-95% oxygen. Then the oxygen concentrators deliver the oxygen to the patient by means of tubes or masks. Oxygen concentrator output is generally measured in LPM (liters per minute). These are home concentrators.

1. Uses less power and produces less heat, so it’s more patient-friendly
2. No filters for the patient to change
3. Available with oxygen purity indicator