How to Deal with Fogging on the Outside of the Windshield When Using Air Conditioning in the Car?
2 Answers
The reason for fogging on the car windows is due to the significant temperature difference between the inside and outside of the vehicle in the current environment. Here are several solutions to address fogging on the outside of the windshield: 1. Open the windows to allow air convection: When outside air forms convection, the temperature difference decreases, and the fog will dissipate. This method does not increase fuel consumption. 2. Use air conditioning for defogging: You can press the front windshield defogging button on the central control panel, then adjust the air vents to direct airflow toward the windshield. This method can almost instantly clear the fog. 3. Use defogging spray: Apply the defogging spray evenly onto a soft cloth, then wipe the windshield with it. Alternatively, you can spray the defogging agent directly and evenly onto the windshield.
Don't panic when fog forms on the outside of your car windows while driving. I've encountered this many times, especially on rainy days or when the AC is set too cold. Large temperature differences between inside and outside cause condensation on the exterior glass. The first thing to do is turn on the wipers to sweep away the fog—they act like little brooms, clearing it in a few swipes. For heavy fog, I temporarily turn off the AC to let the glass warm up, or switch the AC to external circulation mode to balance the temperature with outside air. Cracking the windows also helps, as better airflow dissipates fog faster. For safety, never push through poor visibility—pull over and wipe the windows manually if needed. Develop good habits like regular glass cleaning and using anti-fog sprays to minimize trouble. Always prioritize caution on the road to avoid accidents.
