Sensor of air cleaning monitor that will change the speed automatically according to the air quality. Multipe filtration; pre-filter,activated carbon and HEPA. Nanometer photocatalyst is continually decompose the deleterious gas. Negetive ion generator refresh indoors air. UV lamp for sterilizing and disinfecting. The pre-filter is used to collect and absorb the large size paritcles in the air. The activated carbon is used for absorb the bad odor and unpleasant smell in the air . The HEPA filter effectively filtrate paritcles as tiny as 0.3um such as pollen,smoke, air borne dust and allergens with an efficent up to 99.97%. It’s covered area is big enough. Parameters Unit Data Remark Power W 122 Noise dB(max) 43 Airflow h/m3 920 Anion cententration 2*106 Net weight kg 21 Suitable area m3 150-250 Package size mm*mm*mm 770*770*580