5L Portable Oxygen Concentrator B1

This oxygen concentrator is our most recommended product. It is very portable, we have a trolley, backpack and spare battery in the package. So this product can meet your needs no matter what your situation is.  It has three power suppliers: 👉 This oxygen concentrator has a car inverter, so you can use it in the car.  👉 It is portable with an rechargeable battery, backpack and trolley, you can carry it to travel. 👉 It is can also be used at home after plugged in.  Specification:    Flow Rate 1-5L/min adjustable Purity Oxygen 40%-93% adjustable Voltage AC110V,60Hz±1Hz/AC220V,50Hz±1Hz Power 90W Outlet pressure 0.04~0.06 Mpa Noise less than 40dB Net Weight 12lbs(5.4kg) Dimension 245x181x365mm Lithium battery 14.8 VDC, 15 Ah Battery Duration About 1.5 hours Battery Charing Time 4 to 5 hours Unique Advantage: ✅ Oxygen Concentrator is with Continuous flow, 0-5L/min adjustable. Meets a wide range of demands. 24-hour continuous working, this oxygen machine is conve