Hi Surrey,
Blue polyprop brush is what you want, standard speed rotary.
Yes Selden, sorry about the misspa, was late!
Everyone can see that your marketing is based on the "Green Credentials" of the products that you use, however, just access the latest "Which?" reports, you might have a very un-pleasent surprise!
Just for the record, rotary brushes are coloured because of different materials, nothing to do with preventing cross contamination.
Regarding the choice of vacuum any recognised make will do, just ensure that it has 2 motors!
Regards,
Rob