What are the methods for defogging the car's front windshield in winter?

2 Answers
DeChristopher
07/29/25 5:50am
Methods for defogging the car's front windshield in winter are: 1. Open the windows; 2. Use a defogging spray; 3. Turn on the car's heating system; 4. Activate the car's defogging function; 5. Apply a mixture of dish soap and water or soapy water to the windshield; 6. Place a dehumidifying box inside the car; 7. Wipe with a towel; 8. Increase the fan speed and turn on the cooling switch. The reason for fogging on the car's front windshield in winter is: The temperature difference between the inside and outside of the car causes the water vapor inside the cabin to condense on the inner surface of the windshield, forming fog. Methods to prevent fogging on the car's front windshield are: 1. Use specialized defogging products before driving; 2. Utilize the air conditioning's cooling and dehumidifying function to reduce air humidity.
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CalvinFitz
08/12/25 9:21am
Windshield fogging in winter is all too common. After years of driving, I've summarized simple yet effective defogging methods. Start by immediately turning on the warm air conditioning after starting the car, set to high temperature and high fan speed, with airflow directed at the windshield, and select recirculation mode to allow hot air to disperse fog more evenly. If in a hurry, use cold air for instant defogging. Most modern cars have a dedicated defog button that automatically handles everything, which is quite convenient. For prevention, I wipe the glass clean before parking or spray some anti-fog agent to form a protective layer and reduce condensation. Safety first—never wipe the windshield while driving when fog appears, as it's easy to get distracted and cause accidents. Find a safe place to stop before dealing with it. These small habits make winter driving much more reassuring.
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