What to do when the windshield is foggy and obstructs the view?
2 Answers
The water mist on the windshield can be removed by turning on the wipers. After wiping away the water mist on the windshield with the wipers, it will quickly fog up again. At this point, you need to turn on the car's ventilation system. When the haze is severe, the side windows may also fog up. In this case, you can slightly open the windows by adjusting the window controls.
I've been driving for over 20 years and often encounter fogging issues. The key is to quickly turn on the defroster, increase the fan speed, and direct the hottest air toward the windshield—it usually clears up in seconds. Avoid using the air conditioning unless it's summer with high humidity. If there are many passengers breathing heavily in the car, fog forms faster, so it's safer to pull over and wait for it to clear before driving. For prevention, regularly clean the windows to prevent dust and water buildup, and dry the glass after washing the car. Avoid leaving damp items like wet towels inside, as moisture easily condenses. In winter, pay extra attention by turning on the recirculation mode to reduce interior humidity. A handy tip is to buy a specialized anti-fog spray and apply it to the glass—it can prevent fogging for weeks. Safe driving is crucial; if visibility is poor, don’t push through—pull over and deal with it.