3L Continuous Flow Oxygen Concentrator Battery Up to 8 Work Time

Product Advantage:   1. Long working time: 24hours continuously plugged into a wall or car power outlet, the battery is up to 8 hrs continuously 2. Light and Portable.Only approx 1.8 Ibs, easy to carry. 3. Low noise, mute motor, physical oxygen generation. Below 50db. 4. Convenience: It provides a continuous supply of oxygen without the need to store and replace cylinders. 5. Reliable and easy to maintain. Just keep the intake filter clean and clear of dust. No need for special installation nor wait for deliveries to refill tanks like liquid oxygen or oxygen tanks. 6. Easy to operate. Simplified concise control system with the intensive design under the control of only 2 buttons.  7. Furnished with chargeable lithium battery can be used at home. In a car and even a place without a power supply. 8. Energy-efficient and cost-effective: Mini size, Economical power consumption, Just concentrates pure oxygen from environment air, so it is nearly no cost. Long-term use can save you thousands