Why is there frost on the car's interior windows?
2 Answers
The reason for frost forming on the interior windows of a car is: After people leave the car at night, residual heat remains inside the vehicle, causing the temperature of the windows to be higher than the outside. If the external temperature is too low or it's snowing, the moisture inside the car will solidify into ice beads, forming frost on the windows. Here are some methods to remove frost from car windows: 1. When parking after using the car, don't immediately lock and leave. Instead, wait patiently for a while, open both doors to ventilate, and wait until the interior temperature drops to nearly match the outside temperature. Then, turn on the power and use the windshield wipers to clean any remaining snow or water from the front windshield before leaving. 2. Frost on the rear window is easier to handle. Most cars are equipped with a rear window grid-style defroster. The defroster consumes battery power when operating, so always start the engine first before pressing the rear window defogger switch. The defroster will automatically turn off after 10 minutes.
The most annoying thing about driving in winter is getting into the car only to find the windows covered in a thick layer of frost, making you shiver from the cold. This usually happens because there’s too much moisture inside the car, and when temperatures drop at night, the moisture condenses into frost on the windows. Every day, I drive my kids to and from school—the car is packed with backpacks, snow-soaked umbrellas, and a few warm little kids exhaling moist air. The next morning, the windows are guaranteed to be frosted over. I have to turn on the heater five minutes early, blast the defroster mode with the fan at max, wait for the frost to melt into droplets, and then wipe it dry with a cloth. Before parking, I also have to leave the windows slightly cracked for ventilation, or I’ll definitely regret it the next day.
