▎ 摘　　要

NOVELTY - The utility model claims a graphene titanium dioxide ultraviolet catalytic filter box, relating to the technical field of gas mask filter box, comprising a filter box shell, wherein the top end of the filter box shell is fixedly connected with a filter cover; the inner bottom end of the filter box shell is fixedly connected with an absorbing layer; the surface of the adsorption layer is fixedly connected with a filter screen; the surface of the filter screen is fixedly connected with a titanium dioxide filter cotton layer; the surface of the titanium dioxide filter cotton layer is fixedly connected with a coarse hole filter cotton. The utility model directly makes the organic gas, NH3, H2S, SO2 and so on into harmless gas or oxide and water; removing large particles by coarse-hole filter cotton; the titanium dioxide filter cotton decomposes harmful gas such as organic gas under the ultraviolet light; the adsorption layer removes peculiar smell, the polluted air in the operation is filtered into the poison box; the safe air enters into the human body breathing system, The utility model has good practicability, long service life and high cost performance by combining the three filters with the need of human body.