How to Keep Windows Fog-Free Without Using AC on Rainy Days?
2 Answers
In the car decoration and beauty market, there are specialized defogging agents available. Spray this type of defogging agent onto the inner surface of the car windows and wipe it clean. Adjust the air vents to the windshield setting, turn on the AC switch, and let the compressor work to dehumidify. Mix dishwashing detergent with water in a 1:10 ratio, then use absorbent cotton or a soft cloth to apply it to the inner side of the front and rear windshields and the surfaces of the rearview mirrors.
On rainy days, I don't turn on the AC but rely on opening the windows for ventilation. I leave a small gap in the window to allow air flow, balancing the temperature difference inside and outside the car, which helps prevent fog buildup. I also turn on a bit of warm air directed at the windshield to evaporate the moisture. After starting the car, I adjust the vent positions and wait a moment before driving—the fog naturally clears. Sometimes, I use an anti-fog spray; it's affordable, and a quick wipe keeps the windshield clear all day—cost-effective and convenient. Additionally, I avoid leaving wet clothes in the car to maintain a dry environment, which effectively prevents fogging and ensures safety since fog obstructs visibility and increases driving risks. Addressing it early is key. With these daily habits, rainy-day drives are hassle-free, with clear visibility and a better mood.
