How to Deal with Fog Inside the Car in Winter?
4 Answers
Solutions for fog inside the car in winter: 1. First, use a clean towel or a car-specific anti-fog towel to wipe off the fog on the glass. Once the heater is turned on and the interior temperature rises, the fog will no longer condense; 2. Turn on the car's fan and air conditioning switch. When cold air blows onto the glass, the fog will quickly disappear; 3. When the vehicle's water temperature rises to a certain level, turn on the warm air conditioning for the front windshield and direct it at the windshield. Also, turn on the external circulation to reduce the temperature difference between the inside and outside of the windshield, achieving a defogging effect; 4. Dilute dish soap with water at a ratio of 1:6, then apply it to the car glass cloth and wipe the front and side windshields. Once the dish soap dries, wipe it clean with a dry cloth.
Foggy windows in winter can be quite annoying. I often use the air conditioning defogging function: simply turn the fan to maximum, direct the airflow toward the windshield, press the A/C button to dehumidify the air before heating it, and the fog will clear in two minutes. If in a hurry, cracking the window open for a few seconds to let in fresh cold air for convection can quickly solve the problem. I also recommend using anti-fog spray on the glass—apply a thin layer on clean glass and polish it, which can prevent fogging for up to a week. Prevention is key in daily routines, such as avoiding leaving wet shoes or raincoats in the car to reduce moisture buildup. In cold weather, wipe the windows before driving to minimize dirt and avoid blasting hot air directly at passengers to prevent adding humidity. These tips are all practical, with safety as the priority—if visibility is poor, don’t drive; pull over to resolve the issue before continuing.
Fogging inside the car is a common occurrence, especially in cold weather, primarily due to warm, moist air inside the vehicle condensing into water droplets on the cold glass. I recommend activating the air conditioning defrost mode—set the fan speed high, adjust the temperature to warm, and direct airflow toward the windshield. If you can't wait, open the windows to ventilate and balance humidity by allowing air exchange between the inside and outside. Regularly applying an anti-fog treatment to the glass is effective; a thin layer after each cleaning can reduce water droplet buildup. Control moisture sources, such as minimizing passengers talking and exhaling, and use the external air circulation to introduce drier outside air. Don’t overlook safety hazards when fogging occurs—reduced visibility increases accident risks, so address fogging immediately when it appears. Ensure the air conditioning system is well-maintained for efficient dehumidification.
As an experienced driver, I focus on preventing fogging. Warm up the car for a few minutes before driving to stabilize the interior temperature; start with external circulation to expel moisture, keep the windows clean by wiping them regularly with specialized cleaning solution. Use less direct heating in cold weather to avoid adding humidity, place moisture-absorbing packets under seats. When fogging occurs, stay calm, activate the defogger button with higher airflow directed at the windows, or open windows briefly for severe cases. These habits effectively prevent trouble, emphasizing safety first—pull over if visibility is compromised before addressing the issue.
