Central vac tubing is installed inside the walls of a house. there are hose outlets in most every room. The vacuum motor and *dirt collector* are usually in the garage. So everytime you plug the hose into a socket it automagically starts the vacuum. IOW, you take the long hose and attachments from room to room, plug them in the outlets and vacuum. It's very handy because you don't have to lug the vacuum itself around. But you do have to lug that big hose around, but what else is new?But what does it do? It's like nothing I've ever seen before!
http://img.photobucket.com/albums/v468//Animated/chat.gif
eta: here is a random website for central vacs:
https://www.centralvacuumstores.com...acuum+system&gclid=CK2V8siux5ECFRsFagodDVhd3g