Samsung’s unique Twin Chamber System TM divides the normal dust chamber into two compartments, allowing for improved cleaning and longer lasting power. As the powerful suction circulates dust particles through the cyclonic air path of the inner chamber, the dirt and debris are separated from the air. As a result, the larger dust particles are filtered into the outer chamber until you’re ready to dispose of them. Which also means Samsung’s Twin Chamber vacuums don’t require wasteful, messy, and costly replacement bags.