▎ 摘　　要

NOVELTY - This utility model claims a multi-scale, low resistance air filtering purification material, comprising in turn provided non-woven cloth protecting layer, micron fiber layer, nanometer fiber layer and non-woven cloth substrate layer, and each layer and internal surface covered with graphene nanometre sheet. This utility model said multi-scale, low resistance air filtering purification material, using non-woven cloth substrate layer, fiber layer and nanometer micron fiber layer, separately realization of particle of different particle diameter for the cut-off depth, and with low air resistance, good filtering effect. In addition, through each fiber layer on the fiber surface and internal assembly with large ratio table area and graphene with high adsorptivity, can realize " adsorption, intercepting, screening, inertia auxiliary " multi-layer depth and filtering so as to simultaneous increase the filtering precision and permeability.