What to Do When the Outside of the Car Window Fogs Up?
3 Answers
Solutions for fogging on the outside of the glass are as follows: 1. Open windows for air circulation: If the fog inside the car is not heavy, you can open the windows slightly to allow air to circulate between the inside and outside of the car, reducing the temperature difference and gradually eliminating the fog. This method works similarly to using the air conditioner to blow cold air but does not increase fuel consumption. However, the downside of opening windows is obvious—it is not suitable during rain, snow, or on highways, and it lowers the temperature inside the car. 2. Air conditioning system: For most car owners, using the air conditioning system to defog is the most common method. Almost all cars have air vents under the front windshield. Simply adjust the air conditioning to the appropriate setting to use the airflow to remove fog. Both cold and warm air have their pros and cons. If you're in a hurry, cold air can serve as an emergency solution, but warm air is generally recommended for most situations. 3. Anti-fog products: In many markets and auto parts stores, there are stalls selling specialized anti-fog products, such as anti-fog sprays or fog-resistant towels. Spraying these products onto the inner surface of the car window and wiping them clean not only removes dirt but also forms a thin, transparent protective film that prevents water vapor from condensing into fog. One application can last for about ten days to half a month.
As an experienced driver with over a decade behind the wheel, I've got plenty of tricks for dealing with foggy windows. This usually happens on rainy or foggy days when the outside temperature is low and warm air from the car's heater hits the cold windshield, causing condensation to form on the outside. Simply using the wipers a few times can clear it right up. If the wipers don't do the job, quickly turn on the air conditioning, set it to the highest temperature in defrost mode, close the windows, and let the hot air evaporate the droplets. Don't worry about the interior getting too hot—just a few minutes of this will solve the problem. When parking, it's best to avoid low-lying areas or places with high humidity. Before it rains, check if the wipers are worn or sticking, and replace the wiper blades regularly. Safety comes first when driving—never try to wipe the windshield by hand to avoid accidents. If all else fails, pull over to deal with it.
I often go on road trips with my family, and when fogging occurs outside, it needs to be resolved quickly. The simple steps are to first turn on the wipers to clear the surface, then immediately activate the warm air defogging function of the air conditioner, directing the airflow toward the windshield. Make sure to set it to external circulation mode to let dry air in and push out the moisture. If the wipers aren't effective, don't worry: raising the interior temperature for a minute or two usually works, and it's also a good time to check if the windshield washer fluid is sufficient. Preventive measures are also important, such as avoiding spraying perfume or eating in the car to minimize moisture release. Regularly cleaning the oil film from the windows during maintenance can reduce the likelihood of fogging, ensuring clear visibility and avoiding rainy-day driving risks.
