Filter-1 Mistron MF Units are ducted central oil mist collectors which can move between 1250 and 10,000 CFM of air. The impinger removes large particles and mist and is self-draining. (An optional high-density metal mesh washable prefilter is also available for wet grinding applications.) The unit utilizes a high efficiency micro glass filter for collecting micron and submicron particles. Quiet, energy efficient, and low maintenance operation is provided by a direct drive, backward inclined air foil type blower, requiring no belts to change or bearings to grease. With the vertical oil mist design the primary filter bag pockets are suspended in the vertical position for optimal drainage of the collected coolant mist.