How to Deal with Foggy Windows Inside the Car?
2 Answers
Here are the solutions for foggy windows inside the car: 1. Open windows for air circulation. If the fog is not severe, slightly open the side windows to create air convection between the inside and outside of the car. This reduces the temperature difference and gradually dissipates the fog. The principle is similar to using the air conditioner's cold air, but this method does not increase fuel consumption. 2. Use the air conditioning system. There are air vents under the front windshield. Simply adjust the air conditioner to the appropriate setting to use the airflow to defog the windows. (1) Turn on the air conditioner's cooling function. The cold air directed at the front windshield will quickly remove the fog, with immediate effect. However, the biggest drawback is that the occupants may feel very cold. In the already chilly winter, the discomfort of cold air blowing can be unpleasant. Moreover, the fog may reappear after turning off the cooling function. (2) Using warm air to defog the windows is more effective than using cold air. However, since the water temperature is low when the car is first started, it takes some time for the air conditioner to blow warm air, making this method slower than using cold air. 3. Use anti-fog spray. Spray the anti-fog solution onto the inner surface of the car windows and wipe it clean. This not only removes dirt but also forms a protective film to prevent water vapor from condensing on the glass and forming fog. One application can prevent fogging for about ten days.
Fogging inside the car is indeed troublesome. As someone who's been driving for over a decade, I encounter this frequently during humid, cold weather or rainy days. The solution is quite simple: immediately turn on the air conditioning in defog mode, direct the fan towards the windshield, and activate the AC to dehumidify – the fog clears quickly. For short trips, cracking the windows slightly for ventilation also helps. For prevention, I wipe the interior glass dry before parking or use anti-fog spray to prevent moisture buildup. Safe driving comes first – fogged windows obstruct visibility and are dangerous, so always address the issue before hitting the road. Making it a habit to regularly clean the glass to reduce dirt that traps moisture has made my drives much more comfortable with these small steps.
