PSI was incorporated in 1976, subsequent to pioneering the Domnick Hunter partnership. George Hunter and Sue Hunter were two of the original partners and founders of Domnick Hunter (now known as Parker) for a decade before incorporating Process Scientific Innovations in 1976. PSI Filtration (a factory service for Far East) was founded in 2012 in China. Now we can supply wide range of compressed air alternative filter elements, air filters, air dryers, mufflers and vacuum oil separators in accordance with ISO9001 and ISO13485. All compressed air elements are designed to have 6-layered structure by using our own patented Fiber media with a reputation for unrivalled performance. Our patented molded separators are the most efficient and technically advanced in a variety of applications. PSI is renowned for our engineering excellence, with almost five decades of experience and multiple international patents. During this time the company has established itself as a market leader in the field of filtration and separation technology,and are trusted partners to distributors and OEMs. We will continue to supply superior quality and professional solution for a better natural world.