Features:1) High efficiency2) Rapid and equal speed of increasing humidity rate3) Can adjust humidity rate4) Energy-saving5) Long service life6) Can stop working to protect the machine itself when lacking of waterThis product is produced using ultrasonic wave technology. It can transform water into fog by the function of high frequency vibration and increase indoor humidity obviously in a short period of time to meet the human body demand. Meanwhile, it can output abundant negative anion and get rid of dust and peculiar smell. It is an ideal product for families, offices, restaurants and hotels.There are cartoon type and common type available; both are of practical and beautiful appearance. producing area:China