Abstract: A system for eliminating odorous air from a bathroom stool of the type including a toilet bowl, a water tank connected by a discharge pipe to the toilet bowl, the water tank including a vertical open top overflow passageway connected to the discharge pipe so that water in excess of the desired level in the tank is dispensed into the toilet bowl and through which odorous air may be withdrawn from the toilet bowl, including a hollow open bottom vertical member positioned over the upper end of the overflow pipe, the sleeve lower end terminating below the normal water level in the water tank whereby a water seal is provided so that closed communication is established between the overflow passage and the sleeve, and an air pump having connection to the sleeve to move air from the stool through the overflow pipe and sleeve for remote exhaust.