▎ 摘　　要

NOVELTY - The filter membrane has two transparent organic films (101, 103) adhered together. One of the transparent organic films is provided with a set of through holes (104). The other transparent organic film is provided with another set of through-holes. The through holes are connected with each other to form multiple channels that are clamped between two layers of the transparent organic thin films. A graphene thin film (102) is provided with multiple crack parts and fixed with multiple through holes (105). USE - Air filter membrane. ADVANTAGE - The filter membrane completely satisfies protection resource requirements. The filter membrane has better air permeability and high transparent effect. The filter membrane is flexible and foldable to use, easy to carry and convenient to install. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for an air filter membrane preparation method. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of an air filter membrane. Transparent organic films (101, 103) Graphene thin film (102) Set of through hole (104) Through holes (105)