... in the car.Features:1.1.7MHz ultrasonic atomizer,more fine fog.2.Atomizer with special treatment,Corrosion-resistant,acid and alkali ... spray fog direction. Description:1.Voltage:DC24V/650mA2.Wattage:14W3.Atomizer frequency:1.7MHz4.Anion concentration:3000000pcs/cm35.Humidification volume:20 ...