Filter assembly for air purification

The utility model relates to an air purification technology, and discloses a filter assembly for air purification. The filter assembly comprises a filter layer, a photocatalyst coating and light sources which are arranged below the filter layer or at the side of the filter layer, wherein the filter layer comprises an activated carbon filter layer and an HEPA paper filter layer which is arranged below the activated carbon filter layer; the photocatalyst coating is arranged on the filter layer. According to the filter assembly for air purification, different filter layers are used for purifying and filtering different air pollutants, so that the air purification and filtration effect can be realized to the greatest extent; an LED lamp or a fluorescent lamp, belonging to visible light radiation, are used, so that the secondary pollution of ultraviolet is avoided and the manufacture is simple and the operation is convenient; the photocatalyst coating uniformly coats the HEPA paper filter layer to be combined with the HEPA paper filter layer, so that the structure is simple; the photocatalyst coating is used for completely decomposing the VOC gas in the air so that no secondary pollution is caused.