Ensure the dust picked up by your Miele Vacuum stays well inside the machine with the SB U HyClean 3D Efficiency Vacuum Cleaner Bag. Filtering more than 99.9% of all dust particles, this bag will ensure you get the full use of the capacity of your bag. This dustbag offers the highest level of efficiency when you're vacuuming at a low power level so you can still get great results whilst saving energy. Suitable for all Miele S7000 and Dynamic U1 upright vacuum cleaners, each box contains 4 vacuum bags and 2 filters.