Currently widely used in the semiconductor IC design, wafer, crystal power, optoelectronics, memory sticks and panel manufacturing industries, the Purifying Filter System is often usde as a part of their purifying water systems. It can be installed in front of the ultrapure water UF membranes to pre-filter coarse particles and sharp objects. The Purifying Filter System can reduce the purification burden and replacement frequency of UF membranes to effectively reduce purification costs.