The high-efficiency filter with a partition board is crafted from microfiber filter material, plywood paper, aluminum platinum partition boards, and assembled with either wood or aluminum frames, bonded with glue. This filter boasts high filtration efficiency, low resistance, and a large air volume capacity. It finds extensive application with various purification equipment and cleanroom environments. The standard number of folds in the high-efficiency filter with a separator is determined by the separator's height and the tightness of both the separator paper and the filter paper during assembly.