1-5L/min Pulse Flow Portable Oxygen Concentrator with Backpack

This portable oxygen machine provides an adjustable oxygen pulse flow of 5 Liters per minute and supplies a highly efficient oxygen concentration of 93%±3%. This oxygen machine is relatively compact and ideal for everyday use at home, outside, or in the car, and it is effective in any setting. This o2 concentrator adopts low-noise technology. We are now offering a FREE Carry Bag with every purchase! Features: 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. Very compact design and size, you can go mountain climbing with it. Additionally, this oxygen concentrator includes a backpack that can be worn cross-body or over both shoulders. Easy to operate with a large touch screen, and there is a button “Grade” on the large operation panel, and this button could adjust the output of oxygen flow based on your needs. Equipped with an Alarm light to warn you of any abnormal s