▎ 摘　　要

NOVELTY - The graphene thin film each channel the utility model relates to an air filter membrane, comprising the following steps: (i) a first transparent organic film and the second transparent organic film, wherein the first transparent organic film and the second transparent organic film is overlapped together, and is provided with multiple first through holes on the first transparent organic film, is provided with a second through hole is the same as the number of the second transparent organic film, the first through-hole and the corresponding diameter and the second through-hole is the same to form multiple channels, and (ii) the graphene thin film is clamped between the two layers of transparent organic intermediate variable of a liquid film of the graphene thin film is provided with a plurality of the, or formed on the first through hole and the second through hole corresponding to the air outlet is provided with multiple third through holes. This utility model claims the air filter membrane can prevent ultra small particles, which completely meets the protection needed is PM2.5, at the same time it has good air permeability, transparent, flexible, foldable, easy to carry and it is convenient to install.