BVC in Germany make the best ducted vacuum systems money can buy. They have a range of ducted vacuum machines suitable for small homes where the home owner appreciates quality right up to the largest of homes where the home owner just wants the best.
BVC Centravac ducted vacuums are a bagless machine using a Cordura filter offering extremely fine filtration. The vacuum units are fitted with a HEPA filter on the exhaust making the location of the ducted vacuum motor unit an area suitable for people with allergies.
A disposable bag option is also available for people who would rather not see the dirt when removing the bin. Just remove the clean bin, unclip the bag and throw it in the rubbish.