In fact, Bag filter and cartridge filter’s effect is the same, both filtration efficiency can reach 99.5%. Bag advantages: 1. The bag should be relatively longer life, unbreakable; 2. bag cleaning effect is better, can fully cleaning; 3. Follow-up of long-term use of lower maintenance costs; 4.high filtration efficiency. Bag disadvantages: 1. filter bag smaller. 2. Because the bag resulting in a small area slightly larger baghouse equipment, so the area is slightly larger; and filter dust collector compared to the same area of the filter cartridge type device volumes would be more gentle. 3. The first input costs large.