What are the solutions for foggy front windshield while driving?
3 Answers
The solutions for foggy front windshield while driving are: 1. Use the air conditioning defogging function by turning on the front windshield defogging mode, increasing the fan speed, and lowering the temperature; 2. Activate the one-touch defogging function; 3. Improve air circulation by opening the rear windows to reduce the temperature difference between inside and outside the car, thereby weakening the conditions for fog formation; 4. In winter, use the air conditioning's heating mode for defogging. Avoid turning on the air conditioning immediately after starting the car; wait for the engine to warm up, then switch to heating mode, increase the fan speed, and activate the front windshield defogging mode; 5. Spray defogging agent evenly on the glass surface and wipe it clean with a dry towel; 6. Make a homemade defogging solution by mixing dish soap and water in a 1:6 ratio in a bottle, then spray and wipe the windshield before driving.
Having driven for decades, I know fogging is directly related to safety, so I act immediately when windows fog up. The main cause is temperature differences causing moisture to condense on the glass. It happens most frequently in winter—I usually press the defog button to activate the AC and blow cold air to remove moisture, which works quickly and reliably. Summer rain also easily causes fogging, and turning on the AC cooling is equally effective. For prevention, I must remind you: don’t leave wet umbrellas or half-empty drink bottles in the car, as moisture builds up quickly. Before driving, open the windows to ventilate for a few minutes. Regularly wipe the inner glass with a clean cloth to remove grease, and spray some anti-fog solution to avoid trouble. A dirty cabin air filter leads to more frequent fogging—checking and replacing it is simple. Driving safety is no joke—when fog appears, slow down, pull over, and fix it before continuing.
When my child is in the car and the windows fog up, I'm extra cautious to avoid obstructing visibility. My preferred solution is gentle: cracking a window slightly to allow natural ventilation for the fog to dissipate, avoiding blasting the AC to prevent chilling the child. The defroster button can be used but with the fan speed turned down. For prevention, I place a moisture-absorbing bag on the backseat or use baking soda to soak up humidity. I opt for eco-friendly anti-fog sprays that are non-toxic and safe, with one application lasting a month. If fog forms while driving, I first reduce speed to ensure safety before addressing the issue. Minimizing chemical products is better for health and ensures a safe arrival home.
