Overall dimension mm) - 165mm (length) x144mm (width x85mm (height) product model mi-m681 net weight - about 1.25kg power requirements a. c220v + 22V. 50Hz + 1Hz noise -- ≤ 70dB (A-weighted) power loss ≤ 130va atomizer input gas pressure -- ≥ 80kPa atmospheric pressure - 86kpa-106kp atomizer input gas flow - ≥ 10L / Min atomization amount ------ 20.2ml/min average atomized particle diameter ≤ 5 μ M (μ m)