With the development of industry and increasing concerns on environmental protection issues, traditional dust filters cannot meet the need in capability and longevity. This promotes new development in the fields of environmental protection. The sintered-plate filtering technology, which we introduce from Germany, plays a vital and unparalleled role in dust removing. It is popular because it is efficient in dust-removing and clearing, resistant to dust and longevity in service life. It can be widely used in industrial dust-removing systems for removing extra-fine industrial dust, microviscosity dust and oil dust, in ultraclean air cleaning systems and in air-supply systems of ultraclean air-conditioner in electric enterprise, hospitals, food industry and pharmacy.