... 240VRated frequency: 50HZ-60HZRated power: 25W-40WMax.volume: 2L ultrasonic humidifier With fog adjustable switch;With automatic shut-off when waterless ... ;Ultrasonic air humidifier;Save power;Providing fresh enviroment in hot time; ... products have obtained many certification. Such as CCC, CB, GS, CE/EMC/LVD, PAHS,ROHS, UL, EK, CUL, PSE/JET, ...