5L Portable Pulse Oxygen Concentrator for High Altitude

Portable Oxygen Concentrator Product Feature：   1. Highly efficient 5 Litersmedical oxygen concentration of 90%±3%, The battery working time is up to 3 hours, lightweight, mobile, traveling, in the car. This oxygen machine is relatively compact and ideal for everyday use at home, outside, and it is effective in any setting. This o2 concentrator adopts low-noise technology, you can also use it in a quiet place like a church without disturbing others. 2. The portable oxygen concentrator is small in size and light in weight, it is the most lightweight and delicate machine in the 5 Liters machine with the same effect, and weighs only 6.5 pounds, so it will not be a burden for you to go out. Due to its compact size, you can even go mountain climbing with it. Additionally, this oxygen concentrator includes a backpack that can be worn cross-body or over both shoulders. This oxygen breathing machine is capable of meeting all of your outdoor needs. 3. The portable oxygen machine is easy to op