Why Does the Inside of the Car Windshield Frost Over?

[DiJosephine]

The reason for frost forming on the inside of the car windshield is: after parking, the air humidity inside the car is relatively high. When the car's temperature drops, the moisture in the air inside the car condenses on the windows due to the cold. If the temperature drops to a certain level, the water droplets on the windows will freeze into ice. The windshield is an important part of the entire vehicle, designed to meet the needs of interior lighting, ventilation, and the driver's and passengers' visibility. Methods to remove frost from the inside of the car windshield include: 1. Use a hard plastic scraper to remove the ice; 2. Spray a de-icing agent on the windshield; 3. Cover the windshield with a cloth after parking; 4. After the engine's coolant temperature rises, turn on the car's heater to blow warm air on the windshield; 5. Open the doors to ventilate after parking, equalizing the temperature inside and outside the car.