▎ 摘　　要

NOVELTY - The filter has a main body formed by laminating reduced graphene oxide on a metal mesh and adsorbing fine dust by applying a specific voltage i.e. 5-10V, where average diameter of the fine dust is less than 2.5 mm, lamination of the reduced graphene oxide is performed by interconnecting graphene oxides with reduced metal ions dissolved from the metal mesh and the metal is selected from copper, iron and zinc. USE - Three-dimensional (3D) filter for a fine dust removal device (claimed). ADVANTAGE - The main body is formed by laminating the reduced graphene oxide on the metal mesh and adsorbing the fine dust by applying the specific voltage so as to remove the fine dust by a simple process and improve fine dust adsorption performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a method for manufacturing a three-dimensional filter (2) a method for regenerating a three-dimensional filter. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a 3D filter.