MS Bag Filter is used for the filtration or clarification of fluids that have a relatively small loading of particles to be removed. The particle suspension passes through and the particles settle in the bag. It works by the principle of microfiltration. It is purified in bags bypassing small permeable pores. MS Bag Filter can be used for large amounts of water. These are air pollution controlling industrial equipment that is used prominently in a steam boiler house assembly that is used to control the levels of sulfur dioxide and others.