How to Turn on the Air Conditioning When the Outside of the Glass Fogs Up in Summer?
2 Answers
When the outside of the glass fogs up in summer, the defogging method is: Turn on the internal and external air circulation to allow sufficient airflow, which speeds up the evaporation of the fog and quickly removes the water vapor on the glass. In summer, when the air conditioning is turned on inside the car, the outside temperature is lower than the inside temperature, causing the water vapor inside the car to form small water droplets on the front windshield, which is the reason for the fog on the glass. Below is an introduction on how to solve the issue of fogging when using the air conditioning in summer: 1. In summer, car window fogging mostly occurs on the two side windows and the lower edge of the front windshield. The side window situation is relatively mild, but the water vapor on the front windshield will gradually increase over time, eventually affecting driving visibility, and the water vapor inside the car cannot be wiped off. 2. Using the air conditioning system to remove glass fogging is applicable in both winter and summer. In winter, turning on the cold air conditioning can remove water vapor from the glass. In summer, the method to defog is to turn on the internal and external air circulation to allow sufficient airflow, speeding up the evaporation of the fog and quickly removing water vapor from the glass. 3. You can apply soapy water to the inside and outside of the front window and use the wipers to wipe it once or twice. The soapy water inside the front window can be gently wiped with a tissue until it is semi-dry. After the soapy water completely dries, the front window glass will not fog up, and this effect can generally last for about a week.
As a veteran driver with over 20 years of experience, I've seen my fair share of summer fogging issues. Fogging on the outside of the windshield happens when cold glass meets humid air - never turn on the AC in this situation! My usual approach is to first turn off the A/C button to stop cooling, adjust the temperature dial to the red zone above 25°C, then press the windshield vent button. Remember to activate the external air circulation to let dry outside air in - the fog typically clears in about 30 seconds. Initially, the warm air might make the fog appear worse, but don't panic or try to wipe it away with wipers. Just wait for the glass to warm up. After the fog clears, you can readjust to your normal AC temperature for safe driving. Remember that heat defogging works slower but is the most reliable method - always allow extra time for this process during rainy days.
