How to Deal with Fogging on the Car's Windshield When Using Air Conditioning in Summer?
2 Answers
Solutions for fogging on the car's windshield when using air conditioning in summer: 1. Avoid directing cold air towards the windshield; 2. Dishwashing liquid or soap can be used to prevent fogging on car windows, as these detergents disrupt the attraction between water molecules, reducing surface tension and evenly distributing water molecules on the treated glass surface, forming a water film to maintain clear visibility; 3. There are specialized anti-fogging agents available on the market for car windows, which can be used as defoggers. After application, they absorb moisture from the glass surface, forming a water film to prevent fogging; 4. Slightly opening the windows can help balance the temperature; 5. During frequent rainy days when opening windows is not suitable, using the external circulation defogging function is advisable. The correct air vent setting should direct air to both the windshield and footwell or solely to the windshield.
As a veteran driver with over 20 years of experience, I've seen windshield fogging when turning on AC in summer countless times. Moist hot air condenses on cold glass, creating dangerous visibility issues. Here's my proven method: First, stay calm and press the A/C button (make sure it lights up). Then adjust airflow to the windshield icon and set fan speed to medium-high (3-4 is sufficient). Switch to fresh air mode (recirculation worsens fogging). Keep temperature around 20°C - extreme cold creates more condensation. I regularly clean AC filters and replace them annually to maintain airflow. Preventive measures: remove wet items like cups/towels before driving. If fog persists, pull over safely. Remember: Safe driving comes first. Follow these steps systematically for quick defogging.
