What are the methods to deal with fogging on the outside of car windows?
2 Answers
Methods to deal with fogging on the outside of car windows include: 1. Wipe it clean with a towel; 2. Turn on the car's heater to remove fog; 3. Leave a gap in the window to eliminate fog; 4. Use car glass anti-fog spray. The reasons for fogging on the outside of car windows are: 1. Temperature difference between the inside and outside of the car; 2. The window temperature is lower than the outdoor temperature; 3. Temperature difference on both sides of the window. Maintenance methods for car windows include: 1. Use appropriate windshield washer fluid according to the season; 2. Apply car window heat insulation film. The functions of car windows are: 1. Shield against wind and rain, and reduce noise; 2. Reduce wind resistance and guide airflow; 3. Protect the safety of passengers in the car.
Whenever I encounter foggy car windows, I first turn on the air conditioning. Remember to lower the temperature and press the AC button—this activates the compressor for effective dehumidification. Then switch the air distribution mode to the windshield icon and increase the fan speed. The key is to always engage the external circulation mode; using internal circulation will actually make the fog worse. If it's winter and you're worried about the cold, wait until the fog clears before switching to warm air. Cold air defogs the fastest, but avoid direct airflow to prevent catching a chill. During rainy days, windshield wipers alone can't clear fog effectively—relying on the AC system for dehumidification is the most reliable approach. Don't cut corners by just using warm air, as trapped moisture will cause fog to reappear.
