This product is generating ultrasonic frequencies electricity vibration. Piezoelectric chips makes electricity energy to change to mechanical vibration. At the same time, it creates fog and fountain. Vibration physics produce anion that is favourable fresh air. The fog that generated can increase the air humidity indoor. It is better effective to put into essential oil or medicinal liquid which prevents influenza or cures asthma, and it will make a sweet smell and disinfect your home.