A toilet configured to receive a supply of water, the toilet comprising: a tank configured to hold the water, the tank having a vent hole; a bowl fluidly connected to the tank through a fluid channel; and an integrated flush valve and ventilation system comprising: a valve body fluidly connecting the tank and the fluid channel; a housing disposed in the tank and having a bore that is in fluid communication with the fluid channel at a first end of the housing; a fan disposed in the bore and operable in at least one of a first mode or a second mode; a motor configured to rotate the fan in at least one of the first mode or the second mode; and a vent having an inlet coupled to a second end of the housing and in fluid communication with the bore, the vent having an outlet that is in fluid communication with the vent hole in the tank; wherein in the first mode, the fan moves air from the bowl to the vent, through the bore and the fluid channel, to be vented through the vent hole in the tank; characterized in that the housing is moveable relative to the valve body during a flush cycle to pass the water from the tank into the bowl through the fluid channel; the motor is disposed in the bore; and in the second mode, the fan moves air from outside the tank to the bowl, the air moving thereby through the vent hole, the bore and the fluid channel. a tank configured to hold the water, the tank having a vent hole; a bowl fluidly connected to the tank through a fluid channel; and an integrated flush valve and ventilation system comprising: a valve body fluidly connecting the tank and the fluid channel; a housing disposed in the tank and having a bore that is in fluid communication with the fluid channel at a first end of the housing; a fan disposed in the bore and operable in at least one of a first mode or a second mode; a motor configured to rotate the fan in at least one of the first mode or the second mode; and a vent having an inlet coupled to a second end of the housing and in fluid communication with the bore, the vent having an outlet that is in fluid communication with the vent hole in the tank; a valve body fluidly connecting the tank and the fluid channel; a housing disposed in the tank and having a bore that is in fluid communication with the fluid channel at a first end of the housing; a fan disposed in the bore and operable in at least one of a first mode or a second mode; a motor configured to rotate the fan in at least one of the first mode or the second mode; and a vent having an inlet coupled to a second end of the housing and in fluid communication with the bore, the vent having an outlet that is in fluid communication with the vent hole in the tank; wherein in the first mode, the fan moves air from the bowl to the vent, through the bore and the fluid channel, to be vented through the vent hole in the tank; characterized in that the housing is moveable relative to the valve body during a flush cycle to pass the water from the tank into the bowl through the fluid channel; the motor is disposed in the bore; and in the second mode, the fan moves air from outside the tank to the bowl, the air moving thereby through the vent hole, the bore and the fluid channel.