The innovative iGo2 Portable Oxygen Concentrator introduces the brand-new example for transportable oxygen. With patented Smartdose Technology, iGo2 automatically regulates the oxygen dose in reply to variations in breathing patterns. The iGo2 is lightweight, weighing lighter than 5 lbs. The battery installed is compliant for air travel (Federal Aviation Administration (FAA)). Experience life with freedom, It's the peace of mind and space you're looking for.