Abstract: The present invention relates to a damper device adapted for controlling the flow of cooled air in freezing machines, refrigerators and air conditioners. The damper device according to one preferred embodiment includes a damper casing having a damper opening of a predetermined size, an opening/closing member slidable in the damper casing for opening/closing the damper opening, a guide mechanism provided at both sides of the opening/closing member, an electromagnet fixed at an end of the opening/closing member having coils therearound, a permanent magnet fixed to one side of the damper casing, and a plurality of elastic members along the inner wall of the damper casing for elastically supporting the opening/closing member.