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The utility model belongs to filter material technical field especially, it is base material with foam zeolite layer, including outer frame, the outer frame top outer wall is provided with the top cover, and is provided with the filter assembly between outer frame and top cover, the outer wall of filter assembly is provided with the guide strip of equidistance distribution, and the outer wall of outer frame is provided with the vertical rod of equidistance distribution, the inner wall of vertical rod is opened with the guide slot, and the guide strip slidingly connects in the inner wall of guide slot, the filter assembly includes base material board, adhesive layer and foam zeolite layer, wherein, base material board sets up in the inside of outer frame. The utility model sets up the structure of guide strip and guide slot, and filter assembly is connected with the guide slot on the outer frame through guide strip and slides, so that the installation and disassembly of filter assembly are more convenient, through adhesive layer, foam zeolite layer is firmly bonded on base material board, has improved the combination strength of foam zeolite layer and base material board, effectively prevents foam zeolite layer from falling off in the long-term use process.