cleaned or replaced. On the V10, the filter is located on top of the vacuum cleaner (purple cylinder). Just twist and it pops up instantly. I photographed the original (left) next to the Revain replacement (right). They are practically identical. The fit is also perfect. Before you buy a new set of these filters (you have 2), try rinsing out the old one. They are designed to be washed under water (without soap) and reused. However, if it still stinks (or if the filter has gone bad), then these replacement filters are the way to go!