Purple Kenmore Progressive Bagged Upright Vacuum Cleaner 31913 / 31912 HEPA Filter with Direct Drive Beltless System for Carpet and Bare Floor Rated #1 by Consumer Reports Kenmore Progressive w/ Direct Drive were Rated #1 Upright Vacuum by Consumer reports - Summer 06 Hepa Filter Gets 99.9% of dust mites Direct Drive Beltless System w/ 4 possition height adjustment Built in Dirt Sensor tells you when your carpets clean. Sensor that tells you when your bag is full or there is a clog in the hose.