AirSep's LifeStyle Portable Oxygen Concentrator is one of the most compact, lightweight concentrators available anywhere. At less than 10 lbs (4.5 kg), this unit was designed to accommodate the traveling, working, and highly active oxygen patient. Operating as a pulse flow device, and combining the technologies of both an oxygen concentrator and an oxygen conserver in one unit, LifeStyle gives supplemental oxygen users the ability the world over to maximize their mobility in ways they never thought possible. LifeStyle operates on multiple power sources: on AC power (household electric), DC automobile power, or from a rechargeable battery. The battery recharges while the unit is in operation on AC or DC options. LifeStyle is available through authorized, local oxygen equipment providers.