Vacuum Facts = Elusive

I have been trying to find information about vacuum cleaners, Gretchen and I need a new one. And have found almost no factual information.

For example if I want information about a digital camera I'd go to http://dpreview.com/ Phil Askey has created in depth reviews and his testing methods and the results are clearly documented. He does include his opinion at the end of the review, but readers are encouraged to make their own decisions.

I would expect that at least some websites would have measurements on the decibel level of noise that various vacuum cleaners make... nothing.

If you know of a site that has information please let me know.