1. Perfect efficiency in dust disposing (about 99.99%). They can dispose the mill dust whose diameter is less than Φ1 Um. 2. To blow back by the PLC-controlled impulse, with imported differential pressure display, with the function of automatic ash removal, easy to operate. 3. To save the using space efficiently due to the small volume. 4. Easy upkeep and maintenance due to the reasonable structure design. 5. Many ways of dust-outgo for choosing such as ashes bin, dust-outgoing vehicle, spire discharging device. 6. Many filter element mediums for users to choose, including high temperature resistant style, keeping dry style, antiflaming style and so on. 7. Widely used in the decontamination of mill dust from mechanical workout, chemical industry, building material, medicine produces, electronics, woodworking, smelting, food processing, polishing and some other industrial produces.