Kenmore 33912 / 33913 Progressive Bagless Upright Vacuum cleaner with Beltless cleaning / Dirt Sensor / Performance Indicator for carpet and bare floor Comes with Power Mate Jr. - Beltless System w/ 4 possition height adjustment Hepa Filter Gets 99.9% of dust mites Dual Filter Process Built in Performance Indicator tells you if you bag is full or you have a clog. Built in Dirt Sensor tells you when your carpet is clean (You can also change the sensitivity)