Super powerful 100CFM 2 speed 1.7HP combo vacuum and blower is 99.9% efficient on particles to .3 microns -- even effective in cleaning up messy toner spills. Environmentally friendly --traps and removes harmful pollutants before they are expelled into the atmosphere. Use on mainframes, micros, servers, racks, broadcast, test & pro-audio equipment. Sturdy all steel construction. Compact: 17" x 7" x 7". 6 foot hose.