Esd-Safe Pro Data-Vac/3 Professional Cleaning System, 1.7 Hp, Black Quadruple filtration includes a HEPA filter--99.97% effective in capturing particles of dust as small as 0.3 microns. Equipped with a powerful 2-speed 1.7 HP motor. Grounding wrist strap eliminates static. Environmental sanitizing vacuum virtually eliminates Electro Static Discharge (ESD), which can harm computer/electronic components or hardware. Carry case holds vacuum and attachments.