If you were already a fan of the Dyson V12, then you'll be completely sold on it's successor: the Dyson V15. This cordless vacuum cleaner adjusts the suction force automatically based on the dust level in the room. As a result, this vacuum cleaner saves energy and you can vacuum for up to sixty minutes in one go. The V15 thoroughly cleans your floors at 125,000 rpm, keeping your house dust and dirt free!