A typical bag filter has a dimension of 592 mm x 592 mm and consists of 4 to 12 parallel bags. The length and depth of the bag filter varies from 300 mm up to 900 mm. Bag Filter media efficiency varies from very low (coarse filter) to very high (fine filers). The Bag filter material is made of glass or polymer fibers of different thickness or number of layers, depending on the required filter performance.