Bag filter is the use of porous fibrous filter cloth points high gas and powder equipment, especially for small particles of high efficiency. Bag filter from the cleaning method is divided into vibration type, pulse back-blowing. Pulse back-blowing bag filter will be integrated controller, pulse valve, blowing pipe concentrated in the layout of equipment, the use of good results. Anti-static filter cloth or pleated cartridge can be used for special materials or space-saving.