Our house is not dirty , I reckon it gets dusted, hoovered, cleaned every seven days. However I've just used our Dyson Trackball Hoover thing and done the main bedroon and office room and it's filled the dust compartmentment. It proves the Dyson is very efficient , but you have to wonder where it all comes from. Amazing!!
Having said that the rest of the house only half filled the dust compartment, that's it for another seven days. Just need to buy a new garden hoover as the one I got from Wickes packed in ...It had their name on it!!