What method do you prefer for general maintenance cleaning? I previously preferred the Kirby shampoo, but it can be time consuming for large rooms. My preferred method is the Sebo duo powder, it seems to remove anything I want removed. I also appreciate that Sebo claims that the Duo powder eliminates dust mites for 6 months, as I am severely allergic. I really hate using an extractor, also why I would not like a Rainbow.
