There was one of those machines at the former vacuum cleaner Hospital out my way-someone brought it in for service-came close to getting it-the store owner and I waited out the 30 day period-will the customer pick it up?At the last moment he did.DARN-GOT AWAY.this one is too far away to be convenient.Since they are big and bulky-hard to ship.-you would have to have the orig box and packing.And at 80 pounds-may be too heavy to ship by usual shippers would have to go by motor freight-truck.I tried the machine at the Vac Hospital-was sort of fun to use.Very heavy though.-b ut effective.The dirtmeter for it would be fun,too-looks like a dirtmeter used on Filter Queens.