It is a white powder-like object, under the influence of the visible or ultraviolet light it has a strong ability formaldehyde, methylamine, toluene, xylene, and other harmful organics, pollutants, odors, bacteria, viruses, microorganisms and other harmful organisms completely decompose into harmless CO2 and H2O, and having the specialities such as removal of pollutants, hydrophilic, and self-cleaning properties, lasting performance and no secondary pollution.