2×Battery 3L Portable Continuous Flow Oxygen Concentrators with It has double security to

It has double security to avoid any minor leaking

Easily one of the most important factors to consider when purchasing an oxygen concentrator is the flow rate capabilities

Precision of AI

Oxygen concentration: 35%-90%(Adjustable flow)

Interface language: Chinese/English can be switched

2×Battery 3L Portable Continuous Flow Oxygen Concentrators with It has double security toOxygen Concentrators Features: Multi Purpose: Awesome for home, car, travel, and work, Including 2* battery. Charge 4 hours, Work Time for 2. 5 hours. 2 batteries work for 5 hours Low Noise: less than 45dB, night use will not affect sleep, It works with or without water, no need to refill at night. Portable and light: Size: 9*4. 3*6. 6 inch, weight 4. 4Ibs, with carrying Bag is portable Energy efficient, Economical Consumption: Power Consumption is