Featuring a unique two-step filtration system, this vacuum cleaner can capture 99.97% of all particles greater than 0.3 microns, making it perfect for use in a variety of environments. Additionally, the onboard tool-activated plug allows users to start and stop the vacuum with a power tool, making it easy to use in any situation. The Milwaukee 8960-20 8-Gallon 148-Cfm HEPA Filter Dust Extractor Vacuum also features quiet operation, a suction control dial for performance control, large wheels, and locking swivel casters for jobsite durability, and a water level float valve for easy maintenance.