Nano TiO2 Photocatalyst ZiXiLai photocatalyst suspension is made by our high photocatalytic efficiency nano titanium dioxide for its main raw materials. Through the latest technology, it is made into milky white neutral suspension. In the effect of sunlight or light , the electronic (e-) on the valence band can be excited transition to the conduction band and brought a corresponding hole (h +) on the valence band, generating active oxygen and hydroxyl radical with high oxidation which can make harmful organics, pollutants odor, bacteria etc. such as formaldehyde, benzene, xylene,ammonia, TVOC, and so on decomposed into harmless CO2 and H2O. The product has high-efficiency and broad-spectrum disinfectant performances and can control bacterial cross-infection greatly so as to achieve the goal of controling bacteria and purifying air.