What to Do When Both Side Windows Fog Up?
4 Answers
Anti-fog spray can clean the car windows while also forming a protective film on them to prevent moisture from condensing into fog. The air conditioning cooling method primarily uses the dehumidification function of the AC to reduce air humidity, thereby eliminating fog. In winter, blowing warm air onto the windows raises the glass temperature, reducing the temperature difference between the inner and outer surfaces of the window glass. Then, use degreased cotton or a clean, soft cloth dipped in it to apply to the inside of the front and rear windshields. Open a small gap on both sides of the car windows to create an air convection between the inside and outside, blowing away the moisture.
I've been driving for over a decade, and window fogging is all too common, especially in winter or rainy weather. The solution is simple: first check if the air conditioning system is in recirculation mode, which draws in dry outside air to reduce interior humidity that causes fogging. Every time I get in the car, I make it a habit to set the temperature slightly higher than outside and hit the defrost/defog button - most cars have this feature, just one tap on the climate control panel. If heavy fog persists, I quickly wipe both side windows with a clean cloth (I always keep an old towel in the passenger seat for backup). For long-term prevention, regularly clean interior glass oil stains with household glass cleaner - this significantly reduces fogging. Fogged windows dangerously obstruct visibility, so never handle it while distracted - safety first. Developing good habits is what matters most; never underestimate these details.
Hi, I'm a new driver who just got my license. The first time I encountered foggy windows, I panicked. Later, a friend taught me that it's best to check the humidity inside the car before driving, like not leaving wet clothes or water cups on the seats. Usually, after getting in the car, I just press the defogging button—some cars have a fan-shaped icon or a label saying 'front defogger'—and the system automatically starts blowing air to clear the fog. I also learned a little trick: slightly opening the side windows a crack while turning on the heater fan can help disperse the fog faster. Normally, I use a weather app to check the forecast, and when the humidity is high, I pre-warm the car by turning on the air conditioner in advance. If the windows fog up, don't rush to step on the gas; just drive slowly. After learning these tips, I rarely make silly mistakes and feel much more at ease while driving. In short, new drivers shouldn't be afraid—just try a few times, and you'll get the hang of it.
As someone who prioritizes safety, I always address window fogging immediately to prevent accidents. The basic steps are straightforward: if the side windows are fogged up, promptly turn on the defroster or set the air conditioning to the highest temperature, direct airflow toward the windows, and activate the external air circulation to disperse the fog. Never attempt to wipe the windows while driving—it's too dangerous. If necessary, pull over safely. Prevention is also crucial. I regularly check for moisture inside the car, such as mud on shoes or residual water from umbrellas, and clean it up promptly to avoid condensation. Fogging mainly occurs in humid environments, so maintaining good driving habits is the best strategy.
