Hey Mark!. We have had this talk years ago , but for some reason when I use the Rainbow ONLY, I can see the difference in any dust that appears on the dark wood furniture. I don't know if the Rainbow filters better but I do know I have less dust and no odor when using the machine. I can't make that claim with other vacuums. Thinking about sending mine to be cleaned and new hepa filter as I have had it 12 years and it has seen a LOT of use. I got an estimate from the Rainbow dealer. I do take care of the machine and clean the separator often. I remember one time going to a vac store and they were showing an expensive German made cleaner. Even with the demonstration at the store, I could smell that stale, dusty odor when the machine was turned on. Sure no expert here and not claiming my Rainbow to be better than others but in my house there is a difference when I use it exclusively. Not sure I like the new model with the smaller water basin and the changes in the power nozzle.
