▎ 摘　　要

NOVELTY - The utility model claims a repeatedly used filter, the filter comprises a nonwoven fabric and graphene filter, graphene filter is composed of two layers of graphene layer and a layer of silver nanowire layer, wherein the silver nanowire layer is located between the two layers of graphene layer, the nonwoven fabric is covered outside the graphene filter. the graphene filter contained in the filter is composed of two layers of graphene layer and a layer of silver nanowire layer, wherein the silver nanowire layer is located between two layers of graphene layer, double filtering the micro particles, and making the entered bacteria, because the double graphene interlayer structure is tied in the silver nanowire layer, the silver nanowire is killed; so as to reach the good sterilizing effect, and using the graphene nonwoven fabric to wrap, so as to prevent the graphene filter is damaged by external force, protecting and fixing the graphene filter, and further increasing the filtering effect, and because the sterilizing effect is good, so that the filter has the effect of repeatable utilization.