1L-5L/Min Trolley 24hours continuous Portable Oxygen Generator Concentrator Battery/Travel/Home Use Oxygen Machine

Product Description This portable 1L-5L/m oxygen concentrator with low noise yields 30-90% oxygen purity and is ideal for travel and ambulatory oxygen needs. It can also be used for cars as it comes with a car inverter. With an adaptor to connect the car and the machine, you can absorb oxygen smoothly while driving, and the mini structure of this machine takes itself little space, making no trouble like your lovely pet. Battery lasts 1.5-2 hours when fully charged. Extra battery available for purchase too. Package comes with trolley, carry bag, lithium battery, car inverter and other accessories.     Features 1. Overall flowing water and kneading designing without any projection, customized for families with elderly and children. 2. Pioneered large 4-inch LED color display, so that the elderly can see it more clearly. 3. Pioneer embedded water tank, being easy to remove and clean. 4. Luminous indication of wetting water box, being convenient and beautiful, makes gas flow be adjus