▎ 摘　　要

NOVELTY - The utility model belongs to the filtering material technical field, especially an automobile ventilation system for graphene composite filtering membrane, comprising a first active carbon layer, one side of the first active carbon layer with nanometre particle layer, the nano-particle layer far away from one side of the first active carbon layer with the graphene, the graphene layer far away from one side of the nano-particle layer is provided with a cotton fibre layer and the cotton fibre layer far away from one side of the graphene layer is provided with a bamboo fibre layer, the bamboo fibre layer far away from one side of cotton fibre layer is provided with a plant fibre layer; the plant fibre layer far away from one side of the bamboo fibre layer set with sepiolite fibre layer, the sepiolite fibre layer is provided with a silver fibre layer far away from one side of the plant fibre layer, the silver fibre layer far away from one side of sepiolite fibre layer is provided with a second active carbon layer. The utility model is set with multi-layer structure, the filter membrane can be the bacteria and dust in the air has good filter effect, so as to ensure health of human body is vehicle body.