Filter industry is a highly specialized industry, but there are few corresponding courses in universities. It can be said that it is an industry that needs practices and experiences. From filter media to filter elements, there are many factors that affect the filtration efficiency of finished filter elements. Material selection and structural design of filter element stage are need testing equipment. The detection of finished filter elements is also essential. No matter how good the filter medium are, it is inevitable that the filter material will be damaged and the bonding will be incomplete in the process of discount and adhesive bonding.