NT-06 Highlights1-6L Adjustable Continuous FlowUp To 93%±3% Oxygen ConcentrationNebulizer Function8-stage Filtration SystemReplaceable Battery(Click Here to Get NT-06 Extra Battery)Easy To UseThree Different Charging OptionsAC Power Supply- Home/Hotel/ Office/ Indoor UseDC Power Supply-Use in the CarExtra Battery- Outdoor UseDescription: 1–6 L/min...