This a cat / dog deterrent product has a canister of air with a motion detector on top of it. It omits plain air and makes a loud hissing sound with a quick shot of plain air directed at the motion. Placing at entrances of the room or on the piece of furniture is usually effective to keep the animal off of the furniture or even out of the room. Purchase this from the link below or your pet store. They are less expensive online.

http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=21643