DF-020 Specifications

Flow Rate: 1-9L/min adjustable
Concentration: 96%±3%~30%±3%
Mode: Continuous flow 
Net Weight: 12lbs(5.5kg)
Dimensions: 28*18*33cm / 11*7.1*13in
Noise: ≤40dB
Input Voltage: AC 110-240V, 50/60Hz; DC 12-16.8V