Patented Radial Root Cyclone Technology: Dyson cyclones capture more microscopic dust particles than any other cyclones. For powerful suction on all surfaces. Dyson Ball Technology: Turns on the spot. Central steering mechanism for greater control and effortless maneuvering. Cleaner expelled air than the air you breathe: Dyson cyclones filter particles as small as 0.5 microns from the air - such as pollen, mold spores, and bacteria.