We had a Nilfisk in a historic house that was being used by Maintenance staff to vaccuum the floors, with terrible results. It was not the right tool for basic carpet cleaning, hard on staff and hard on the vaccuum. There are a lot of reasonably priced HEPA vacs out on the market, mostly advertised toward allergy sufferers. We found a Shark vac for under $200 that made the Maintenance staff happy and does a great, dust-free job. (The Nilfisk was moved to the collections storage facility for collections-only use.)
