Portable Oxygen Concentrator Tp-B1 Powered by Battery & AC

Feature The simple designed portable oxygen concentrator is small-size, the weight is only 4.4 pounds, it is easy to carry. The portable oxygen supplies a stable and continuous oxygen flow at 3L/min and provides oxygen concentration around between 28% and 30%. The advanced portable oxygen machine includes further noise reduction using new technology design. The noise is as low as 48db. You can use the oxygen generator in public places without bothering someone else. For better oxygen theropy experience, we adopted the international macromolecular membrane separation physical oxygen production method. Absorb the dust in the air to reduce the harm to you. At the same time, dust particles have a certain impact on the operation of equipment, the filtration will also reduce the impact of dust on the equipment. The oxygen machine generates fresh and green oxygen. Specifications Oxygen Flow Rate Mode Does Continuous Flow Setting Oxygen Flow Rate  Stable 3 L/min (LPM) Oxygen Concentration 28% to 30% at All Settings Item Weight 4.4 lbs (1.99kg) Item Size 9.84*4.72*5.91 inches 2200 mAh Battery Weight Included in the package, 0.61 lbs (0.28kg) Battery Last  1-1.5 hours Working Time Power off every 4 Hours for ProtectionCan be Powered on Immediately Power Supply Rechargeable battery/ AC power adapter/ Car converter Warranty 1 Year MSRP $429.00  You Save: 30%   TP-B1 Components 1X Portable oxygen concentrator 1X Instruction manual(check the online manual here) 1X Carrying bag 1X 5ft Tube & nasal cannula 1X Rechargeable 2200mAh battery (Click here to get extra battery) 1X AC Power Adapter 1X Car Adapter