An oxygen concentrator system includes a portable unit and a base unit. The portable unit includes an air separation device. The base unit includes a vacuum pump. The portable unit is moveable with respect to the base unit between a connected position, in which the vacuum pump of the base unit is co
An oxygen concentrator system includes a portable unit and a base unit. The portable unit includes an air separation device. The base unit includes a vacuum pump. The portable unit is moveable with respect to the base unit between a connected position, in which the vacuum pump of the base unit is connected to the air separation device of the portable unit for applying vacuum pressure at the air separation device of the portable unit, and a disconnected position, in which the vacuum pump is not connected to the air separation device of the portable unit. The air separation device operates using a vacuum pressure swing adsorption (VPSA) cycle when the portable unit is in the connected position. The air separation device operates using a pressure swing adsorption (PSA) cycle when the portable unit is in the disconnected position.
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1. An oxygen concentrator system, comprising: a portable unit including an air separation device; anda base unit including a vacuum pump, wherein the portable unit is moveable with respect to the base unit between a connected position, in which the vacuum pump of the base unit is connected to the ai
1. An oxygen concentrator system, comprising: a portable unit including an air separation device; anda base unit including a vacuum pump, wherein the portable unit is moveable with respect to the base unit between a connected position, in which the vacuum pump of the base unit is connected to the air separation device of the portable unit for applying vacuum pressure at the air separation device of the portable unit, and a disconnected position, in which the vacuum pump is not connected to the air separation device of the portable unit, and the air separation device operates using a vacuum pressure swing adsorption cycle when the portable unit is in the connected position, and the air separation device operates using a pressure swing adsorption cycle when the portable unit is in the disconnected position. 2. The oxygen concentrator system of claim 1, wherein the air separation device includes at least one sieve bed having an adsorbent material disposed therein. 3. The oxygen concentrator system of claim 1, wherein the portable unit includes a first vacuum port in communication with the air separation device, and the base unit includes a second vacuum port in communication with the vacuum pump, wherein the first vacuum port is connected to the second vacuum port when the portable unit is in the connected position. 4. The oxygen concentrator system of claim 3, wherein the first vacuum port and the second vacuum port cooperate to define the only fluid-transmitting coupling between the portable unit and the base unit. 5. The oxygen concentrator system of claim 1, further comprising: a detector that is operable to determine whether the portable unit is in the connected position or the disconnected position. 6. The oxygen concentrator system of claim 5, wherein the detector is located in the base unit. 7. The oxygen concentrator system of claim 6, wherein the detector is a pneumatic detector. 8. The oxygen concentrator system of claim 7, wherein the pneumatic detector is operable to sense a pressure condition. 9. An oxygen concentrator system, comprising: a portable unit including an air separation device, a compressor coupled to the air separation device for supplying compressed air to the air separation device, a product gas outlet coupled to the air separation device for receiving a product gas from the air separation device, and a first vacuum port coupled to the air separation device; anda base unit including a second vacuum port and a vacuum pump coupled to the second vacuum port for applying vacuum pressure at the second vacuum port,wherein the portable unit is moveable with respect to the base unit between a connected position, in which the first vacuum port is connected to the second vacuum port, and a disconnected position, in which the first vacuum port is not connected to the second vacuum port, and the air separation device operates using a vacuum pressure swing adsorption cycle when the portable unit is in the connected position, and the air separation device operates using a pressure swing adsorption cycle when the portable unit is in the disconnected position. 10. The oxygen concentrator system of claim 9, wherein the air separation device includes at least one sieve bed having an adsorbent material disposed therein. 11. The oxygen concentrator system of claim 9, wherein the vacuum pump of the base unit is operable to apply vacuum pressure to the air separation device when the air separation device operates using the vacuum pressure swing adsorption cycle. 12. The oxygen concentrator system of claim 9, wherein the first vacuum port and the second vacuum port cooperate to define the only fluid-transmitting coupling between the portable unit and the base unit. 13. The oxygen concentrator system of claim 9, further comprising: a detector that is operable to determine whether the portable unit is in the connected position or the disconnected position. 14. The oxygen concentrator system of claim 13, wherein the detector is located in the base unit. 15. The oxygen concentrator system of claim 14, wherein the detector is a pneumatic detector. 16. The oxygen concentrator system of claim 15, wherein the pneumatic detector is operable to sense a pressure condition at the second vacuum port. 17. An oxygen concentrator system, comprising: a portable unit including an air separation device; anda base unit, wherein the portable unit is moveable with respect to the base unit between a connected position and a disconnected position, wherein the air separation device operates using a vacuum pressure swing adsorption cycle when the portable unit is in the connected position, and the air separation device operates using a pressure swing adsorption cycle when the portable unit is in the disconnected position. 18. The oxygen concentrator system of claim 17, wherein the base unit includes at least one component that is configured to be connected to the portable unit when the portable unit is in the connected position with respect to the base unit. 19. The oxygen concentrator system of claim 17, wherein the at least one component of the base unit is a vacuum pump that is operable to supply vacuum pressure to the air separation device of the portable unit when the portable unit is in the connected position with respect to the base unit. 20. The oxygen concentrator system of claim 19, wherein the vacuum pump is operable to apply vacuum pressure to the air separation device when the air separation device operates using the vacuum pressure swing adsorption cycle.
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