Mirror defogging device

The utility model provides a mirror defogging device, goes up the open structure of box lower part including setting up respectively at the last box of mirror upper portion and lower part and box down, the upper portion of lower box be open structure, help the air the mirror surperficial follow last mobile under extremely, go up that the box insidely still is provided with air pump, air outlet, the device that generates heat, controlling means and power, the internal portion of nowel is provided with the air exit, the air outlet of going up box and the internal setting of nowel and air exit form complete air runner on the mirror surface under the effect of air pump, but detach the surperficial steam of mirror through the air top -down who heats, and fog effects coverage area is big, also be difficult for the water smoke that condenses behind the mirror temperature rise, fog effects has the persistence, temperature sensor and humidity transducer can gather the temperature and the climate information on mirror