What to Do When the Car's Exterior Glass Fogs Up?

2 Answers
LeAmara
07/25/25 2:44pm
Methods to deal with fogging on the car's exterior glass are: 1. Opening the windows can increase air convection, reduce the temperature difference between the inside and outside of the car, and weaken the conditions for fog formation; 2. Turn on the air conditioning's cooling mode and adjust the air flow mode to the windshield setting, which usually takes about 10 seconds; 3. Use an anti-fog spray for air conditioning, evenly spray it on the glass surface, and then wipe it clean with a dry towel; 4. Mix dishwashing liquid and water in a ratio of 1:6, put it in a bottle, and spray and wipe it before traveling. If the fogging on the glass is severe while driving, it will affect the driver's visibility and is not conducive to driving safety, so it is necessary to quickly remove the fog to eliminate safety hazards.
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VonLuke
08/11/25 9:12pm
I've seen a lot of fogging on the exterior glass, mainly caused by temperature differences – for example, on cold days or after rain, the car windows are cold, and when they meet warm air, fog forms. When driving, I first turn on the wipers to sweep away most of the mist. If the wipers don't work or the car doesn't have wiper functionality, I press the defog button on the AC, adjust the vents towards the windshield, and turn on the heat to evaporate the fog. I usually spray some anti-fog spray on the exterior glass, which lasts long and significantly reduces the chance of fogging. Safety is paramount – when fogging occurs, drive slowly or pull over to handle it, and only continue when visibility is clear. Prevention is key: keep the glass clean and free of grease, and wipe the surface more often when washing the car.
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