Dust Boss fully automatic oscillating ducted fan incorporates a high-pressure misting system. It uses 30 spray nozzles and 150-psi booster pump to create an ultra-fine mist that attracts dust and brings it down. A 25-hp, 30,000-cfm fan covers up to 21,000 square feet with up to 100 gallons per minute of water particles from 50 to 75 microns.