More of a comment than a review-I have a Hoover Windtunnel and I had not checked the bag and realized it needed replacing until the bag was overfull. Well, even after replacing the bag the vacuum did not seem to be picking up too well. My husband managed to clean a bunch of stuff out today by unscrewing the plate on the bottom near the brush roll and pulling out stuff and now the vacuum is once again working fine. I ordered a couple of packages of bags to keep on hand so I do not make the same mistake of not replacing the bag when needed! That is what having five cats in a house will do though, fill up that vacuum cleaner bag quickly and I would rather the stuff go in a bag that have to keep cleaning out a bagless vacuum!