Critical Process Filtration, Inc. is dedicated to offering you superior quality products at the lowest cost possible. The industries we supply rely on filtration as a critical part of the manufacturing process - our goal ......Critical Process Filtration, Inc. is dedicated to offering you superior quality products at the lowest cost possible. The industries we supply rely on filtration as a critical part of the manufacturing process - our goal is to provide them with robust and effective filtration backed with custom, expert support. With a thorough understanding of process and labor, were experts at optimizing cost per volume and giving you the right equipment at the right size and price.