How to Defog the Car's Front Windshield?
2 Answers
The reason for fogging on the car's windshield is the temperature difference between the inside and outside of the vehicle. The higher temperature inside the cabin compared to the outside causes moisture in the cabin to condense on the inner surface of the windshield, forming fog. Here are methods to defog the car's front windshield: 1. Open the windows; use a defogging spray. 2. Turn on the car's heater; activate the car's defogging function. 3. Apply a mixture of dish soap and water or soapy water to the window; place a dehumidifier box inside the car. 4. Wipe with a towel; adjust the fan speed appropriately and turn on the cooling switch. Here are preventive measures to avoid windshield fogging: 1. Use specialized defogging products before driving. 2. Utilize the air conditioning's cooling and dehumidifying functions to reduce air humidity.
When your windshield fogs up while driving, don't panic. Having driven for several years, the most common solution is to turn on the air conditioning for dehumidification. Press the defog button in your car or set the fan to level 2, with the temperature at medium or slightly warm. In cold weather, using warm air for defogging works best, and turning on the A/C can speed up dehumidification. Window fogging occurs due to the temperature difference between the humidity inside the car and the glass exterior, so I often crack open a window for ventilation, which clears it up in minutes. If there's no air conditioning, opening all the windows to let the wind in also helps. In winter, be careful not to turn up the heat too quickly, as it can actually cause more fogging. Keeping the windshield clean is crucial too—dust buildup makes it easier for condensation to form, so I regularly wipe it down with anti-fog spray. Above all, safety comes first; if the fog is too thick, pull over to handle it instead of trying to wipe while driving.
