DESC: Do you want the ultimate in power and the convenience of cordless? Black and Decker is the first to bring Cyclonic Action to a Cordless Hand Held Vacuum! If you notice that your hand vac doesnt seem to pick up as much as it used to or it doesnt have as much power as you think it should, its probably a clogged filter. With the new Cyclonic Action DustBuster, dirt and debris is circulated in the bowl and around the filter, allowing air to pass through the machine with no reduction in suction power. With the filtration system running so efficiently, the DustBuster has more power and more run time than any other cordless hand held vacuum in the marketplace.