I didn't, so hopefully newer Roomba's should be better in this regard. It's a difficult thing to measure though and I didn't want to take the chance again (in

I didn't, so hopefully newer Roomba's should be better in this regard. It's a difficult thing to measure though and I didn't want to take the chance again (in the short term). I found I got better cleaning (measured anecdotally by how much Ventolin I use) from a high-end handheld vacuum cleaner with HEPA and changing how I clean to include curtains, mattresses and pillows. Definitely not as cool as having a robot though. I think that Karcher used to make a robot with a base station that it would empty itself into, which is a neat idea. That would cut down on the emptying. [EDIT] I should add that the handheld vacuum cleaner has its own problems too since it's bagless. Great in principle until you empty it into a cloud of dust. I like seeing how much dirt is picked up but maybe disposable bags are the best solution after all.