Caire FreeStyle Comfort Portable Oxygen Concentrator $2,495.00 Caire Freestyle is Ergonomic with Curvy finish. Comes with LCD display and Standard 8 cell battery. Weighs less than 5 pounds and FAA approved for commercial air flights. Category: Oxygen Concentrators Tag: Caire Related products AirSep FreeStyle 5 Portable Oxygen Concentrator with 2 Battery System $1,900.00 View product Respironics EverFlo Q Oxygen Concentrator $1,295.00 View product Inogen One G3 Portable Oxygen Concentrator with 8 cell battery $2,820.00 View product Caire FreeStyle Comfort Portable Oxygen Concentrator $2,495.00 View product