Sensor of air cleaning monitor will change the speed automatically according to the air quality. Multiple filtration: prefilter, Electrostatic precipitator(ESP/EP ) ,Activated carbon, HEPA. TiO2 photocatalyst filters can continually decompose the deleterious gas. UV lamp for sterilization and disinfecting. Negative ion generator refreshes indoors air. Operate by remote--control and key--control easy to use. Suitable area:50---60m2. Parameter Voltage AC100-240V Frequency 60/50HZ Power 150w Weight 35kg Air delivery 800-1000m3/h Noise 54dB Dust purifying rate 99% Formaldehyde purifying rate 99% Benz purifying rate 99% UV sterilization rate 99%