How to Solve Fogging on the Outside of Car Windows on Summer Nights?
2 Answers
A common practice is to turn on the car's fan and cooling switch, which will direct cold air toward the windshield. Below is a related introduction about car window fogging: 1. Cause: Window fogging occurs because the temperature of the window glass in contact with the outside is relatively low, and the temperature difference between the inside and outside of the car makes it prone to fogging. Water vapor inside the car condenses on the glass, forming fog. 2. Prevention Method: Spraying Anti-Fog Agent. Spray a small amount of anti-fog agent on the car window and wipe it clean to remove dirt and stains from the glass. While polishing the glass, it forms a thin transparent protective film that effectively prevents water vapor from condensing on the glass and forming fog, especially suitable for cold winters.
I've been driving for over twenty years, and foggy windows on summer nights are all too common, especially when the air is humid. The outside temperature is low, the glass is cool, and when the hot air inside the car hits it, water droplets form. Before driving, turn on the air conditioning, set it to the coldest and strongest fan speed, and activate the defogging mode for the windshield. Using the recirculation mode to reduce humidity is even more effective. After parking, don’t rush to turn off the engine—open the windows to let the moisture dissipate for a few minutes. Keep a simple defogging spray handy to apply on the glass; one bottle can last for months with its anti-fog layer. When parking in humid conditions, don’t close the windows completely to maintain dryness and reduce trouble. With these practices for over a decade, fogging rarely happens, making driving much safer, and I no longer worry about poor visibility leading to accidents.
