What to Do When There is Fog Inside the Car?
2 Answers
The solutions for fog inside the car are: 1. Open both side windows to allow air convection; 2. Use a damp towel to wipe the windows; 3. Turn on the car's air circulation system; 4. Turn on the automatic climate control air conditioning; 5. Use professional defogging agents to remove the fog. Methods to prevent fog inside the car include: covering the car windows with a towel or bath towel after parking to prevent fog formation. The reasons for fog inside the car are: 1. Under certain humidity conditions, when the window temperature is lower than the dew point temperature, condensation forms on the window surface; 2. A temperature difference occurs on both sides of the window, with the surface at a lower temperature having a lower saturated vapor pressure than the surrounding environment; 3. Moisture gathers on the glass surface and forms tiny droplets, leading to fog formation.
I've been driving for several years and fogging issues are too common, usually caused by water vapor condensation due to the temperature difference between the inside and outside of the car. When I get in the car and notice fog, my first reaction is to open the windows or sunroof for ventilation, allowing air circulation to quickly reduce humidity. Then I immediately turn on the air conditioning defogging mode, pressing the defog button, which automatically adjusts the airflow direction and temperature to blow toward the windshield. For regular maintenance, it's important to note that dirty glass is more prone to fogging, so I use glass cleaner to wipe it down once a week to ensure it stays clean and clear. If the fogging is severe, turning on the heater or AC cooling also works, and setting it to external circulation helps with moisture removal. Having too many people in the car or leaving wet clothes inside for too long can also cause fogging, so controlling the interior humidity is key. In short, act quickly—don’t compromise driving safety, and take some time to clear it up before heading out. Remember, regular checks of the air conditioning system are also important to avoid being caught off guard if it malfunctions.
