What to Do When the Car Windshield Fogs Up?

[McMaya]

Here are the methods to defog the windshield before driving: 1. Use a Special Defogging Agent: There are specialized defogging agents available in the automotive decoration and beauty market. Spray this type of defogging agent onto the inner surface of the car window and wipe it clean. While removing dirt from the glass, it also forms a thin, transparent protective film on the glass, effectively preventing the formation of fog caused by condensation. One application can prevent fogging for about 10 days. 2. Turn on the Air Conditioning While Blowing Hot Air: According to the car manual, the method to defog is to adjust the air conditioning vents to the windshield setting, turn on the air conditioning switch, and let the compressor work to dehumidify. However, if the temperature control knob is set to the cold air setting, the passengers inside the car will feel very cold. Therefore, you can place the temperature knob in the warm air position to achieve both defogging and heating purposes. 3. Open the Window Slightly: If you notice that the fog inside the car is not too heavy, you can open a small gap in the side windows. This allows the air inside and outside the car to circulate, reducing the temperature difference and causing the fog to gradually disappear. The principle of this method is the same as turning on the air conditioning cold air, but it does not increase fuel consumption.