A projector includes a light source device, an image projection device configured to modulate light emitted from the light source device to generate image light and project the image light, a power supply device configured to supply electric power to the light source device and the image projection device, a housing configured to house the light source device, the image projection device, and the power supply device, a first discharge fan configured to set at least one device of the light source derive, the image projection device, and the power supply device as a cooling target and suck gas from the cooling target and discharge the gas, a second discharge fan configured to discharge the gas discharged by the first discharge fan and the gas in the housing to an outside of the housing, and a duct for circulating the gas discharged by the first discharge fan to the second discharge fan.