The Battery-Operated ULV Cold Fogger use high-power super speed brushless DC motor, the high speed motor can drive the fan blade to produce high-speed rotary cutting airflow, at the same time, pressurized to the solution tank to make the solution delivery to the micro nozzle according to constant flow rate and high speed air flow, under the common action of high-speed rotary cutting airflow and special structure of nozzle, the liquid is broken into tiny fog particles.