The Neato XV-21 Automatic Vacuum Cleaner is specially designed for pet owners and allergy sufferers. With the most powerful suction of any robot vacuum, the XV-21 picks up dirt, debris, and even the toughest pet hair. The Neato XV-21′s special filter retains more than three times the amount of fine dust particles as standard filters, which is perfect for removing allergens from the home. A new combination bristle and blade brush improves the pick-up of pet hair, dander and fibers. A Neato can handle large floor plans, because it automatically recharges its batteries, when it’s low on power, the robot simply returns to its base and recharges, then it returns to clean, right where it left off.