How to Deal with Fogging on the Outside of the Windshield in Summer?
2 Answers
Methods to remove fog from the outside of the windshield include opening windows for air circulation, using the air conditioning system, and applying defogging agents. Here are detailed introductions about car defogging: Opening Windows for Air Circulation: If the fog inside the car is not heavy, you can open the windows slightly to create air circulation between the inside and outside of the car. This reduces the temperature difference and gradually dissipates the fog. Air Conditioning System: Using the air conditioning system to remove fog is the most common method. Almost all cars on the market today have air conditioning vents located under the front windshield. Simply adjust the air conditioning to the appropriate setting to use the airflow to defog the windshield. Defogging Agents: Special defogging agents are widely available in auto parts stores and supermarkets. Spray the defogging agent onto the inner surface of the car glass and wipe it clean. This not only removes dirt from the glass but also forms a protective film to prevent moisture from condensing into a fog layer on the glass.
I've dealt with similar situations before. In summer, fogging on the outside of the windshield is mainly caused by the air conditioning being set too cold, which cools the glass surface and causes humid air to condense into water droplets. When this happens, I usually immediately turn on the wipers to clear the fog; if the wipers don't work well, I adjust the direction of the air vents to avoid blowing directly on the windshield or slightly increase the temperature to warm up the glass. Opening the windows a bit to allow air circulation can also quickly resolve the issue. For the long term, I recommend keeping a bottle of automotive anti-fog spray to apply on the exterior of the glass—one application can last several days. Regular vehicle maintenance, such as checking for worn wiper blades and cleaning dirt off the glass surface, can also help prevent fogging. On hot summer days, opening the windows for ventilation before driving can reduce temperature differences. These simple and practical tips ensure clear visibility while driving.
