A damper device according to an embodiment of the disclosure includes a frame having an opening and a blade coupled to the frame to open/close the opening, the damper device including a first bracket provided on the frame such that the blade is rotatably coupled thereto, a second bracket provided to correspond to the first bracket, a first hole and a second hole formed bilaterally symmetrically on the first bracket and the second bracket, and a motor connected to rotate the blade through one of the first hole and the second hole, wherein the blade is connected to the first hole when rotated in a first direction, and is connected to the second hole when rotated in a second direction opposite to the first direction.