Because toner is statically charged, a specialized grounded vacuum is required to safely remove it from office equipment. Using an ordinary vacuum can build static and lead to shocks, small explosions or even fire. Toner particles are exceptionally small and require special filtration to avoid clogging filters and/or spewing dust back into the air.
Electrostatic discharge (ESD) vacuums are engineered to provide static electricity to be grounded. With the appropriate ESD vacuum, you are able to safely vacuum toner and other dust and particles found in copiers and printers.