The SmartDose Technology used in this Portable Oxygen Concentrator delivers more oxygen when needed, automatically maintaining the oxygen saturation levels required. This high performance Oxygen Concentrator is lightweight, featuring a handy over-the-shoulder carry case as well as a durable overmould. The LCD screen is easy to read, and the battery replacement is simple to carry out with the loading area at the top of the Concentrator. It provides the user freedom to travel with the peace of mind they are receiving the oxygen levels needed, and is also FAA compliant for use on aircraft.