Oxygen concentrator

摘要

An apparatus for providing oxygen-enriched air at a first pressure and at a second pressure, the second pressure being greater than the first pressure. The apparatus comprises, in combination, a pressure swing adsorption system (104) and a pressure intensifier (109). The pressure swing adsorption system (104) for enriching the oxygen content of air has a pressure of at least the first pressure. The pressure swing adsorption system (104) is adapted to provide oxygen-enriched air to a first outlet (106) at the first pressure and to provide oxygen-enriched air to a pressure intensifier (109) at the first pressure. The pressure intensifier (109) pressurizes the oxygen-enriched air and provides the oxygen-enriched air to a second outlet (112) at the second pressure.