For six years, I have a DYSON - and never again I would buy another vacuum cleaner. I live on a busy street and had thus much fine dust in the apartment. The expensive paper bag my old vacuum cleaner (a sauteurer "V ..... k") moved the dust within a very short time the pores, and although only a quarter full, sucked the vacuum cleaner with extremely poor performance. A more expensive fun. Not my DYSON! It sucks and sucks and sucks ... What it comes the "suction line" is gone, and rotates from then on in the transparent dust container. And so there is no misunderstanding arises: Dyson sucks everything - not just fine. Buttons, coins, stones, paper towels and even a sock he creates problems. A fine-pored foam filter (which is purified once a year under running water) and an activated charcoal filter (in my Dyson in six years is serving, I've never renewed) guarantee cleanest, odorless exhaust air. NO DUST BAG MORE !!! Simply empty, closed and further suck the dust container. There are probably quieter vacuum cleaner, but hardly leisungsfähigere and lower maintenance. Since there are no frills like "electronic Suction strength", but a small pull tab on the handle, and you will reduce the suction power for vacuuming curtains or delicate upholstery. My Conclusion: Powerful, robust, simple and cheaper than other brand devices, because the expensive anthers disappear!