▎ 摘　　要

NOVELTY - The utility model claims an electrostatic combined filter screen, comprising a supporting limiting component, the supporting limiting component comprises a limiting frame, the inner part of the limiting frame is provided with a catalytic filter layer, the side surface of the catalytic filter layer is provided with a fine filter layer, the side surface of the fine filter layer is provided with a primary layer, the top end of the supporting limiting component is provided with a high pressure bag, the fine filter layer comprises a graphene filter film layer and a PP melt-blown static electret filter layer. The utility model has reasonable structure, it is convenient to characteristics, through the set high pressure bag, initial layer, fine filter layer and catalytic filter layer are matched with each other, effectively purifying the bacteria in the air, virus, peculiar smell and dust. In particular, the graphene filter film layer in the fine filter layer receives the high pressure packet to release negative charge, generating ionization electric field, particulate matter, improving fine filter layer filtering efficiency, prolonging service life of the filter screen.