Why Does the Car Window Glass Fog Up When Using Air Conditioning in Summer?

[Thalia]

In summer, the car window glass fogs up when using air conditioning due to high humidity and excessively low temperature inside the car. Effect of Hot Air Defogging: However, this method should not be used while driving. It is best to use it when the car is parked. Direct the hot air from the air conditioner toward the glass. Initially, the fogging may increase, but after a few minutes, the fog inside the car will be dried up, and there will be no recurring fogging. Homemade Defogging Solution: You can easily make your own "defogging solution" by mixing dishwashing liquid and water in a ratio of 1:10. Then, use a clean, soft cloth to dip into the solution and apply it to the inside of the front and rear windshields. This method is both simple and cost-effective.