www.foodengineeringmag.com/articles/85445-compressor-filters
Compressor filters
October 1, 2006

Domnick Hunter Oil-X Evolution filters remove oil and water aerosols down to 0.01 mg/m3 and particulate down to 0.01 micron in size. And the company's Pneudri compressed air dryers will remove remaining water vapor to give a dewpoint of -40