Self-adjusting cleaner head
The cleaner heads on most upright vacuums need to be manually adjusted for different floor types. If this isn't done, a gap is crated beetwen the cleaner head and the floor - and suction is lost. DC66 has an active base-plate that self-adjusts across every floor type. It maintains close contact with the floor at all times, automatically raising and lowering. Suction isn't wasted - it's sealed in. It also has 25% more power than its predecessor to drive bristles deeper into carpets and release more ground-in dirt.