Abstract: A plumbing fixture, representatively a commode, is provided with a bowl odor-eliminating ventilation system having an exhaust fan portion which draws odor-causing fumes from the commode bowl through a closed inlet path and then discharges the fumes via a closed discharge path into the water side of the main trap structure of the commode beneath the surface of trap water therein. Fumes discharged into the trap water bubble upwardly therethrough into the air side of the trap for flow to the sanitary sewer line to which it is connected. Representatively, the exhaust fan is disposed in a water-tight chamber in the commode tank.