All DC37 vacuums have: - Hygienic bin emptying: Just push the button to release the dirt. - Large bin capacity: DC37 has a large bin - so you don't have to empty it as often. - No extra costs: Dyson canister vacuums don't use bags and have washable permanent filters. There aren't any extra costs. - 5 year warranty: All Dyson upright and canister vacuums come with a 5 year warranty - parts and labour.