This is our in house Oil Mist Reducer. If you have ever used a Vacuum Pump in a closed environment you know why this product was made. Rotary Vacuum Pumps emit oil mist. The output can quickly fill the room with a thick fog on oil mist. The U.S. Government has released anexposure to oil mist maximum. Breathing oil mist can cause serious respertory health problems. Our Oil Mist Reducer contains up to 90% of the Oil Mist. View our videos to see just how well our product works.