Kärcher Hoover DS 6: The vacuum cleaner with water filter provides both thoroughly cleaned floors and fresh exhaust air purified to 99.5%. Unlike traditional vacuum cleaner with filter bag, the vacuum cleaner DS 6 uses a water filter that filters and wraps the dirt. The intake dirt is routed through the swirling water and thus reliably filtered. The result is an exceptionally fresh and clean air out from the vacuum cleaner.