Rated Voltage : AC 230V, 50Hz Voltage Adjustable . 230V / 120V ( Optional ) Extreme Pressure : > 205Kpa Nebulizer Pressure : 100-190Kpa Noise Level : < 60dB Max Capacity of nebulizer kit : 10ml Nebulizing Rate : â?¥0.2m / min MMAD : 4.2um FPD : = 75% Continuous working time : 20 minutes on , 40 minutes off Carton size : 400x290x290mm N W.: 7.0kg G.W.: 7.9kg