How to Deal with Foggy Windows When Using Air Conditioning in Summer?
2 Answers
Solutions for foggy windows when using air conditioning in summer: 1. Appropriately increase the temperature inside the cabin to reduce the significant difference between indoor and outdoor air temperatures; 2. Use the windshield wipers to clear the fog and direct some warm air towards the windshield to quickly disperse the fog; 3. Apply anti-fog agents to the windows, which absorb moisture on the surface and form a water film to prevent fogging; 4. If it rains frequently and opening windows is not suitable, turn on the external circulation defogging mode, ensuring the air vents are correctly positioned to blow air towards the front windshield and footwell or just the front windshield.
I've been driving for almost twenty years and have encountered the issue of fogging up when using the air conditioning in summer quite a few times. You can simply adjust the air vents to the windshield mode—that's the fan-shaped icon on the dashboard—and turn up the fan speed. The cold air blowing directly onto the glass will clear the fog instantly. On rainy days when humidity is high, remember to turn on the external air circulation to keep the air flowing, as using internal recirculation will only make the fog worse. I always keep a bottle of anti-fog spray in the glove compartment. Spray it on the inside of the windshield when parked and wipe it clean, and you won’t have to worry about fogging for a week or two. Also, remember to change the cabin air filter every three to four months—if it's clogged, the dehumidification effect will be poor, making fogging more likely. Never wipe the windshield with your hand while driving—it’s too dangerous. Back in the day, an old buddy of mine rear-ended someone because he was wiping the glass.
