The Nilfisk VT60 Wet / Dry Vacuum Cleaner features a unique four-stage filtration system designed for liquid or dry pick-up, with nofilter change or adjustment. 115 V, 1000 W. Internal HEPA filter ensures 99.97% of all ultrafine particles, toxic and nuisance, are retained down to and including 0.3 microns in size. * Optional ULPA filter ensures 99.999% down to and including 0.12 microns in size. The water, rot, mildew, and corrosion-resistant main filter captures particles down to one micron and is covered by an exclusive splash guard to protect against excessive moisture and further extend the life of the HEPA filter. The pliable rubber inlet tube is designed to relieve caking and clogging caused by the collection of damp or sticky material. Detachable trolley features sturdy polyethylene construction and large, smooth wheels for easy decontamination and added maneuverability. The foam impact filter fits over and protects the float valve from clogging debris. The Nilfisk VT60 Wet / Dry Vacuum Cleaner filtration system enables simultaneous collection of wet and dry debris while protecting the filters from water and moisture damage. An internal HEPA filter ensures that 99.999% of all particles are retained down to 0.3 microns in size.