Medasave,LLC has the a best price guarantee and we deliver for free! The Invacare XPO2 Portable Oxygen Concentrator is a lightweight and compact portable oxygen concentrator that can be used for oxygen therapy at home or while traveling. One of the smallest oxygen concentrators available, the Invacare XPO2 Portable Oxygen Concentrator weighs six pounds but is fully functional at higher altitudes than most other oxygen concentrators. Reliable and durable, the Invacare XPO2 Portable Oxygen Concentrator is a far greater value than portable oxygen concentrators such as the Inogen One. The Invacare XPO2 Portable Oxygen Concentrator operates at up to 10,000 feet making it perfect for higher altitude travel. The controls are simple, enabling the Invacare Portable Oxygen Concentrator to be easier to use than most other oxygen concentrators. The internal battery provides the Invacare Portable Oxygen Concentrator with up to 2.5 hours battery life while an optional additional battery pack increases use to up to 5 hours. The Invacare XP02 Portable Oxygen Concentrator kit includes the concentrator, carrying case, AC adaptor, and DC adaptor, DVD, Manual, and a supplemental battery pack. Additional battery packs for the Invacare XPO2 Portable Oxygen Concentrator can also be purchased separately.