How to Quickly Remove Fog Inside the Car?

[LaylaLynn]

Methods to quickly remove fog inside the car: 1. Open windows for air circulation, allowing the inside and outside temperatures to equalize, which naturally dissipates the fog; 2. Use the air conditioner's defogging mode by turning on the hot air setting to evaporate the fog inside the car. However, it's important to note that the hot air should be turned on before driving to dry the glass slightly, preventing the fog from worsening while driving; 3. Dilute dishwashing liquid with water, dip a clean cloth into the solution, and apply it to the windshield. This prevents water vapor from affecting the glass when it comes into contact; 4. The use of glass anti-fog spray can reduce condensation caused by moisture on the glass surface, effectively eliminating fog. Simply spray it on the inner surface of the glass and wipe it clean to prevent water vapor from condensing on the glass. One application can prevent fog for about ten to fifteen days.

[LeLondon]

I often drive my kids to and from school, and foggy windows are a common issue. The quickest solution is to turn on the air conditioning defogging function, remembering to press the AC button to activate cooling and set the temperature to the lowest. Once the fog clears, adjust it back to normal temperature. If you don’t want the AC to be too cold, you can crack the windows slightly to allow air circulation, but this isn’t advisable on rainy days. When washing the car, try applying dish soap evenly to the inside of the glass and wiping it clean with a dry cloth—this can prevent fogging for several days. Another handy trick is to direct the AC airflow toward the windshield for the fastest results. Never use a towel to wipe the fog, as it will only make the haze worse. It’s also a good idea to keep a professional defogging spray in the glove compartment for emergencies, especially during winter.

[LeHadley]

It's really annoying when the windshield fogs up, especially during the seasonal transitions between winter and summer. My habit is to turn on the defogging mode as soon as I get in the car and set the fan to maximum. If it's raining, closing the windows and turning on the AC is the fastest way to defog; on sunny days, just opening the windows a bit for ventilation works. Remember to always switch to the external air circulation mode, as it defogs quickly without making the car stuffy. Don't forget to press the rear window heating button so you can see clearly in the rearview mirror. The defogging spray bought from the supermarket is indeed effective—spray it on and wipe it evenly with a dry towel, and the effect can last for a week. I've also tried cutting a potato and rubbing it on the glass—this folk method works quickly but doesn't last long. Additionally, models with a built-in defogging button are the most convenient, as the system automatically adjusts when activated.

[MacMiles]

I've researched quite a few solutions for window fogging issues. For emergency defogging, the air conditioning method works best: turn on the AC, switch to external circulation, lower the temperature, set maximum airflow towards the windshield, and the fog will clear within 40 seconds. For long-term prevention, it's recommended to use automotive defogging spray weekly, ensuring thorough and even application after spraying. Some find soapy water application effective, though results can be inconsistent. Avoid opening windows to defog on rainy days as it lets moisture in. When parking outdoors, remember to cover the windshield with a car cover to minimize fogging. Regular cleaning of interior glass oil films also helps.

[VanHailey]

Twenty years of driving experience in defogging: In summer, turning on the air conditioning is the fastest way to remove fog, while in winter, it's better to use warm air to slowly dissipate it. Don't panic when fog appears; immediately press the defrost button to activate the air conditioning and heating system, and switch to the external circulation mode. For cars without a button, turn the fan up by three or four levels and direct the vents toward the glass. Develop good habits to avoid generating steam by eating in the car, and regularly wipe the interior glass with a clean, damp cloth to prevent oil film buildup. Before parking, leave a five-centimeter gap in each of the four windows for ventilation, and you'll hardly encounter fog the next day.