Dyson DC40 Multi Floor Upright Vacuum Cleaner- Factory Reconditioned Dyson cyclone technology captures more dirt and microscopic dust than any other. With no loss of suction. Radial Root Cyclone technology - airflows remodeled to maximize suction power. Cleaner head self-adjusts for optimal contact- even on hard floors. No awkward dials. New Ball technology - housing more components inside the ball reduces clutter around it - steers right up to edges and into difficult places. Instant release wand stretches up to 5 times in length for stairs and hard to reach places.