... lightweight,suitable for travel use 4 moveable Portable Oxygen Concentrator for Home/Car/Travel Furnished with chargeable ... panel and legant profile2)With earphone shaped oxygen breathing apparatus made of Nano material, sterilizing ... Portable and light weight,only 2.35kg,and small size. 3)With car line,can be used ... sale mini battery operated oxygen machine(3L),portable oxygen concentrator,CE approved