What are the methods to eliminate fog on the windshield?
4 Answers
Eliminating fog on the windshield can be done by: 1. Opening the sunroof; 2. Rolling down the car windows; 3. Using warm air or the air conditioner's cold air to blow on the front windshield. Functions of the windshield: 1. Blocking wind and rain, reducing noise; 2. Reducing wind resistance and guiding airflow; 3. Protecting the safety of passengers. Maintenance methods for the front windshield include: 1. Using windshield washer fluid according to the season; 2. Applying heat-insulating film to the car glass. Cleaning methods for the car front windshield: 1. Pour water from the top of the vehicle and wipe off the dirty water with a sponge; 2. Evenly spray glass cleaner solution onto the glass using a high-pressure spray bottle; 3. Carefully dry the moisture with a soft cloth.
To eliminate condensation on the windshield, I usually start by turning on the air conditioning defrost button at high fan speed, directing air toward the glass—adjusting between warm or cool air depending on the weather. At the same time, I slightly activate the external air circulation to let dry air in. If I need to drive urgently, cracking the window slightly for ventilation and dehumidification works effectively too. Additionally, keeping an anti-fog spray in the car to apply and wipe clean can provide several days of fog-free visibility. Regularly avoid leaving wet items like umbrellas or damp towels in the car when parked, and clean the air conditioning filter periodically to prevent clogging. Make it a habit to check the air conditioning function before driving on rainy days. These methods have helped me maintain clear visibility for decades of driving.
When encountering foggy windows, turn on the air conditioning and press the one-touch defogging button to direct airflow to the windshield at maximum fan speed for quick results. If there's no AC, slightly opening the windows for ventilation also helps. I prefer using defogging spray cans—just spray and wipe smooth with a soft cloth for super convenient anti-fogging. Diluted soap water wiped on glass is another cheap and durable trick. Avoid keeping water containers in the car; open doors to release moisture before entering during rainy days as prevention. Keeping the interior dry minimizes fogging, similar to room dehumidification. These daily tips save time and hassle.
For effective defogging, use the air conditioning to dehumidify by setting a moderate temperature with maximum fan speed. Slightly open the windows to introduce dry air, which helps balance humidity. Applying an anti-fog coating can provide long-lasting fog prevention, but don't forget to regularly clean oil films from the glass surface. Check the car's air recirculation settings to ensure the system is functioning properly.
