Why is there frost on the inside of car windows?

[Charlie]

Frost forms on the inside of car windows because: after parking, the humidity inside the car is relatively high. As the car's temperature drops, the moisture in the air inside the car condenses on the windows when it encounters the cold. When the temperature drops to a certain level, the water droplets adhering to the windows freeze into ice. Car windows are an important part of the vehicle body, designed to meet the needs of interior lighting, ventilation, and the visibility of the driver and passengers. Methods to remove frost from the inside of car windows include: 1. Using a hard plastic scraper to chip away the ice; 2. Spraying a de-icing agent onto the windows; 3. Covering the windows with a cloth after parking; 4. Turning on the vehicle's warm air to blow on the windows once the engine's coolant temperature rises; 5. Opening the doors to ventilate after parking to equalize the interior and exterior temperatures.