HACENOR Portable 2 Hours Battery 1-7L Adjustable Continuous Flow Oxygen Concentrator With Atomization Function DZ-1BCW Voltage:I need an additional battery Replacement time: Replace with a

Replacement time: Replace with a new filter every 5-6 months

93%±3% High Purity

Strap the backpack directly behind the seat

one-button start

90% Oxygen Concentration

HACENOR Portable 2 Hours Battery 1-7L Adjustable Continuous Flow Oxygen Concentrator With Atomization Function DZ-1BCW Voltage:I need an additional battery Replacement time: Replace with aFeatures: Large capacity lithium battery: Not affected by power failure,it can also be used outdoors. Vehicle power supply: Power supply of vehicle lighter. Atomization drug delivery: One machine for two purpose. Follow the doctor's advice. More convenient atomization at home. Intelligent infrared remote control: There is no need to stand up frequently. Use the remote control to operate the oxygen concentrator. Original backpack: Convenient to carry.