What are the methods to deal with fogging on car windows when using air conditioning in summer?
2 Answers
Methods to deal with fogging on car windows when using air conditioning in summer include using the air conditioning system to remove fog, opening windows for air drying, applying soapy water, and using defogging agents. The reason for fogging on car windows is due to the significant temperature difference between the inside and outside of the vehicle in the current environment. Methods to deal with fogging on car windows when using air conditioning in summer: Use the air conditioning system to remove fog. This method can be used in both winter and summer. Turn on the internal and external air circulation to allow sufficient airflow, which speeds up the evaporation of fog. This can also quickly remove moisture from the windows. Additionally, periodically switching the air circulation helps purify the air inside the car, making the ride more comfortable. Open windows for air drying. When the fog is not severe, you can slightly open both windows to allow air convection, which eliminates the temperature difference on both sides of the windshield, making it difficult for fog to form. Apply soapy water. You can apply soapy water to the inside and outside of the front windows, then use the wipers to wipe once or twice. The soapy water on the inside of the front windows can be gently wiped with a tissue until it is semi-dry. Once the soapy water is completely dry, the front windows will not fog up. Use defogging agents. The principle of defogging agents is simple: spraying a layer on the windshield forms a protective film that prevents the condensation of fog. However, the effectiveness of this protective film is short-lived, requiring repeated applications to maintain the effect.
I've been driving for over a decade and often encounter fogged-up windows when using AC in summer, especially after rain or in high humidity. Once during a road trip when heavy rain started, the windshield instantly became misty. I immediately pressed the defogger button (the one with the fan-shaped symbol), turned the airflow to maximum directed at the windshield, switched to external circulation to reduce cabin humidity, and slightly lowered the AC temperature - the fog cleared right away. I regularly clean windows with glass cleaner to prevent fog-causing grime buildup. Fogged windows dangerously obstruct visibility, particularly on highways, so I recommend habitually activating defog mode when turning on AC with adequate airflow. In summer, gently using wipers can clear external condensation. Staying proactive prevents accidents. Remember to avoid prolonged use of internal circulation as it traps moisture, making fogging worse.
