The Black and Decker cyclonic action cordless dust buster offer power for greater suction and the cyclonic action keeps dust and debris away from the filter to keep the suction power strong for years to come. The extension nozzles pulls out to allow reaching into those tight spaces and the 3-stage filtrations prevents dust from escaping back into the air. The filtration system is so efficeint the dustbuster will give you more power and run for a longer period of time that any other cordless handheld vaucum. No more handling dirty filters or overfilled bags. With the translucent bowl, you see the dirt moving around the filter and you will be able to tell when it's time to empty the bin. Quck charning syster and on-board attachments. The Black & Dcker cyclonic dustbuster is great to use around the house, garage, or keep tucked away at the office for a quick clean up.