In the WG Before, we had a DirtDevil with permanent filter. Vacuum cleaner with permanent filter seem to me never go back to the apartment! With the Philips sucking is a real pleasure. The extra nozzle for edges and joints (?) Are always there when vacuuming because they are housed in a separate holder on Sauggrif. How to (ideally) not lost, and is always at hand. The vacuum cleaner bag we changed the first time after 3 months! So stick to the running costs to be. Way to Philips!