Why Does the Passenger Side Window Fog Up?

[MacDaniela]

Window fogging occurs due to a simple reason: the temperature difference between the inside and outside of the car. Here are some solutions: 1. Utilize the air conditioning: While driving, you can first turn on the cooling function. For a more thorough solution, it's best to turn on the heating either before driving or when parked by the roadside until all fog disappears. 2. Open windows for air circulation: Based on the principle of fog formation, you don't even need to use the air conditioning. Simply opening the windows slightly on both sides allows air inside the car to circulate. This method helps equalize the temperature inside and outside the car, preventing fog from forming. 3. Purchase specialized anti-fog products: Anti-fog sprays can be applied to the inside of the windshield and wiped evenly. There are also special anti-fog towels available on the market, in both dry and wet varieties. These towels are more convenient than sprays, requiring just a wipe, but their effects are shorter, usually lasting no more than 24 hours.