The origins of modern compressed air filtration can be traced back to domnick hunter in 1963, it was the first company to use microfiber filter media for purification applications, changing the compressed air industry forever. The OIL-X filter range was the first filter range to fully utilize this groundbreaking technology and has always been synonymous with high quality compressed air. Now in the 21st century, the OIL-X name remains, but the technology has evolved beyond recognition.