What should I do if the glass door of the display cabinet often fogs? 1. In summer, increasing the temperature of the display cabinet and reducing the temperature difference between the inside and outside of the display cabinet can effectively alleviate the water mist phenomenon on the glass door. 2. Dry the glass door with water mist with a towel, and then carry out a very important operation, that is, wash the glass door of the display cabinet with soap, and then dry it directly with a cloth without washing. 3. Putting the display cabinet in a ventilated place can effectively reduce the phenomenon of water mist from the glass door.