▎ 摘　　要

NOVELTY - Composite filter element comprises multiple closely-connected hollow cylindrical filter layers, which are ceramic layer, composite adsorption layer, protective layer and activated carbon layer from outside to inside; cavity is formed in the center of the activated carbon layer; the composite adsorption layer is extruded from porous material and adhesive; the protective layer is made of KDF and ATS; the porous material is zeolite powder, bentonite, kaolin, graphene, and/or alumina. USE - The composite filter element is useful in filter for emergency water supply (claimed). ADVANTAGE - The composite filter element: has good filtering effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for filter. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the composite filter element.