Remove harmful dirt, dust and other debris from nearly all office equipment. The 1.7 HP cleaner is capable of removing 99.9% of harmful particles down to.3 microns on wide range of office equipment such as: mainframes, typewriters, calculators, copiers and laser printers. The triple filtration system--with a cloth bag, toner filter bag and fiberglass micro filter--traps dust and debris and prevents it from being recirculated in the office. The 3-ft. flexible hose and shoulder strap are great for getting to those hard-to-reach areas. Two-Speed. Power: 1.7 hp.