▎ 摘　　要

NOVELTY - The utility model claims an air purifier capable of effectively killing bacteria virus and removing formaldehyde in air, comprising a filter channel orderly provided with an active carbon filter layer, a graphene filter screen filter layer, a first air flow driving fan; a first graphene cloth filter layer; between the active carbon filter layer and the graphene filter screen filter layer is provided with a first cavity; between the first air flow driving fan and the first graphene cloth filter layer is provided with a second cavity; the trumpet-shaped first cavity gradually increases from the active carbon filter layer to the inner diameter of the graphene filter screen filter layer; the second cavity gradually increases from the first air flow driving fan to the inner diameter of the first graphene cloth filtering layer; the trumpet-shaped first and second cavities do not affect the air flow rate; the flow rate of the air can be properly reduced; the air can fully and graphene filter screen; the first graphene filter cloth is relatively more uniformly mixed; the graphene filter screen or filter cloth can fully contact the air; relatively comprehensive elimination of formaldehyde and bacteria in the air.