How to Deal with Foggy Windshield?
2 Answers
Methods to remove fog from the windshield are as follows: 1. Air Conditioning Defogging: This is the simplest method. Just turn on the front window defogging mode, set the fan speed to maximum, turn on the A/C switch, and then adjust the temperature to the lowest. The fog on the glass will be eliminated in no time. Additionally, some models have electric heating for the rear windshield and side mirrors. Simply click the switch, and the fog will be removed in about a minute. 2. Air Convection: This method is suitable for fewer situations. 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. This method seems economical, but it is rarely suitable. If it's raining outside, you can't keep the windows open, and the incoming wind is quite limited. 3. Defogging Spray: Simply spray it evenly on the glass surface and wipe it clean with a dry towel. Its principle is to use surfactants to leave a protective film on the glass surface, altering the surface tension of water molecules, causing fog droplets to coalesce into larger droplets that do not obstruct vision. It can also be used on other car glass, especially the side mirrors. 4. Homemade Defogging Spray with Dish Soap: Mix dish soap and water in a 1:6 ratio and store it in a bottle. Spray and wipe before traveling. The effect is comparable to commercial defogging sprays, though the durability is slightly inferior.
Every time I drive, especially on rainy or cold days, the windshield fogs up the most, making it impossible to see anything—it's really frustrating. My habit is to press the defog button as soon as I get in the car, turn the air conditioning to high, and direct it at the windshield. Cold air quickly removes moisture, while warm air is more effective in winter. If the fogging is severe, opening the window slightly for a few seconds to ventilate helps a lot. Normally, avoid leaving wet items in the car, as they can increase humidity. Keep a clean cloth or anti-fog spray handy to wipe the inside of the glass when needed. Ignoring fogging can be dangerous—I once had to pull over on the highway to safely deal with it. During regular maintenance, check the air conditioning system to ensure the defogging function works properly, preventing potential issues.
