How to Remove Fog from the Car Windshield?
3 Answers
Methods to remove fog from the windshield are as follows: 1. Special defogging products. Spray the defogger onto the inner surface of the car glass and wipe it clean. This not only removes dirt from the glass but also forms a thin, transparent protective film on the glass, preventing water vapor from condensing and forming a fog layer. 2. Open windows for convection. Allow air inside the car to circulate, gradually bringing the interior temperature closer to the outside temperature, which will help dissipate the fog. 3. Use the air conditioning system. Turn on the car fan and the cooling switch. The cold air blown onto the glass forms a 'cold air film' on the surface, preventing carbon dioxide from condensing on the glass, thus achieving a defogging effect.
I always commute by car, and when the windshield fogs up, I handle it simply. First, don’t panic. After starting the car, turn on the defroster fan and adjust the airflow direction to the windshield. At the same time, pressing the A/C button can quickly dehumidify. If the fog isn’t too heavy, opening the windows for a few seconds to ventilate also helps, but be careful of water getting in during rain. Prevention is key—I often use anti-fog spray on the glass and wipe it every two weeks, which saves money and hassle. If there’s oil film or stains on the glass, it tends to attract fog, so regular cleaning with soapy water works well. If sudden fog occurs while driving on the highway, don’t get distracted—slow down and pull over safely. Personally, I think developing these small habits can prevent big problems, making driving more comfortable and safer.
I have to pick up and drop off my kids every day, and the foggy windows are really annoying. But experience tells me that the first reaction should be turning on the air conditioning defrost mode, cranking up the fan to blow cold air directly at the windshield for quick dehumidification. In winter, using warm air also works, but it takes a bit longer to dissipate. When the humidity inside the car is high, cracking open the front windows for ventilation helps clear the fog quickly. Keeping a dry towel in the car to occasionally wipe the windows is a good auxiliary measure, and avoid touching critical visibility areas with warm hands. It's advisable to keep an anti-fog spray in the car; they're practical and cost just a few bucks at the supermarket. Pay attention to door seals to prevent drafts, reducing the accumulation of cold air in winter. Regularly check if the air conditioning filter is clogged, as reduced efficiency makes it harder to clear the fog. These little tips make family outings much more reassuring.
