A painting facility, wherein: spraying means for spraying paint downward is disposed at an upper portion of a painting area; a robot installing area for installing a painting robot is disposed laterally adjacent the painting area; a painting object held to an arm leading end portion of the painting robot is painted by paint spraying from the spraying means while displacing the painting object relative to and downwardly of the spraying means by an action of the painting robot; an air feeding opening for the robot installing area is provided for feeding ventilation air to the robot installing area; by air feeding from the air feeding opening, the robot installing area is placed under a higher pressure than the painting area adjacent thereto, thereby to form an air flow (ra) which flows from the robot installing area into the painting area; a painting area air feeding means for feeding ventilation air (sb) to an upper portion of the painting area and an air curtain air feeding opening for forming an air curtain (fa) which flows downward along a painting area lateral wall disposed opposite the adjacent robot installing area are provided at upper portions of the painting area; downwardly of the painting area, there is formed an air discharging area for discharging downward air (ea) present inside the painting area; wherein as the painting area air feeding means, a sock filter for discharging the ventilation air fed therein through a circumferential portion thereof is disposed under a horizontal posture at an upper portion of the painting area; and wherein an air curtain air discharging box having the air curtain air feeding opening in a lower face portion thereof is disposed at an upper portion of the painting area in close vicinity of the painting area lateral wall; and a leading end portion of the sock filter is connected to and opened into the air curtain air discharging box. spraying means for spraying paint downward is disposed at an upper portion of a painting area; a robot installing area for installing a painting robot is disposed laterally adjacent the painting area; a painting object held to an arm leading end portion of the painting robot is painted by paint spraying from the spraying means while displacing the painting object relative to and downwardly of the spraying means by an action of the painting robot; an air feeding opening for the robot installing area is provided for feeding ventilation air to the robot installing area; by air feeding from the air feeding opening, the robot installing area is placed under a higher pressure than the painting area adjacent thereto, thereby to form an air flow (ra) which flows from the robot installing area into the painting area; a painting area air feeding means for feeding ventilation air (sb) to an upper portion of the painting area and an air curtain air feeding opening for forming an air curtain (fa) which flows downward along a painting area lateral wall disposed opposite the adjacent robot installing area are provided at upper portions of the painting area; downwardly of the painting area, there is formed an air discharging area for discharging downward air (ea) present inside the painting area; wherein as the painting area air feeding means, a sock filter for discharging the ventilation air fed therein through a circumferential portion thereof is disposed under a horizontal posture at an upper portion of the painting area; and wherein an air curtain air discharging box having the air curtain air feeding opening in a lower face portion thereof is disposed at an upper portion of the painting area in close vicinity of the painting area lateral wall; and a leading end portion of the sock filter is connected to and opened into the air curtain air discharging box.