What to Do When the Windshield Fogs Up on the Outside?
2 Answers
Solutions for windshield fogging up on the outside: 1. Wipe it clean with a tissue: Suitable for use when the car is stationary, especially in winter, this method is quite effective; 2. Use the car's warm air to clear the fog: Suitable for situations where fog on the window glass affects visibility while driving, turn on the car's air conditioner and blow air towards the windshield to eliminate the fog; 3. Crack the window to remove fog: While driving, if the temperature inside the car is high and fog appears, you can use the method of cracking the window; 4. Use car glass anti-fog agent: This is a more scientific approach, usually applied to the glass before driving and then wiped off, forming a water film to ensure visibility while driving.
Windshield fogging outside the car most commonly occurs in humid weather or during significant temperature differences, such as on rainy, foggy days or in the early morning. My first response is to use the windshield wipers a few times—if the fog is a thin layer, it usually clears off. If that doesn't work, I immediately turn on the defogging mode of the air conditioner, adjusting the airflow direction toward the windshield, using either cold or warm air—cool air in summer and warm air in winter. Stuffy and hot air inside the car can worsen fogging, so I make it a habit to slightly open the window for ventilation to allow air circulation between the inside and outside. Keeping a bottle of defogging spray in the car is even better; applying it to the outer surface of the glass can prevent fogging. Safety comes first—if visibility becomes severely blurred, never force yourself to drive; pull over and clean it thoroughly before continuing. These simple and effective tips are quick to put into practice.
