How to Deal with Foggy Side Windows?

[Madison]

Use the air conditioner to remove the fog by blowing air. There are two methods: using cold air and using hot air. This can quickly blow away the fog and is suitable for use on rainy summer days. Some car models are equipped with a rear window electric heating function. When cleaning, be sure to wipe along the direction of the heating wires to avoid damaging them.

[Karl]

As an experienced driver with years of driving, I know not to panic when the windows fog up and to deal with it immediately for safety. The most reliable method is to start the engine, then press the AUTO button on the air conditioning to direct the airflow to the front windshield; most cars have a defogging mode, usually indicated by a fan-shaped arrow icon. If the fogging is particularly severe, slightly open a window to ventilate and expel moisture while maintaining a steady speed. The cause is usually a large temperature difference between inside and outside combined with exhaled moisture condensing, especially after rain or in winter. Never use a cloth to wipe while driving, as it's unsafe to move around. I usually keep a bottle of anti-fog spray in the car; after cleaning the glass, spraying it on can prevent fogging for several days. In short, don't push through; handle it thoroughly when parked.

[GemmaLynn]

As a daily commuter, I often encounter foggy windows, but it's easy to handle. I find the best method is to first turn on the heater, set it to high temperature, and direct it to the front windshield—most cars have a dedicated defog button in the center. At the same time, activate the car's air conditioning compressor for cooling, which quickly removes moisture and clears the fog. If the fog is light, simply press the external circulation button to let fresh air in and dilute the humidity without needing to open the windows. In winter, when there are more people in the car exhaling warm air, fogging occurs; in summer, high humidity after rain can also cause issues. I always keep a towel and anti-fog pads in the car for quick fixes, but avoid doing this while driving as it's too dangerous. Developing a habit of cleaning the glass before driving helps reduce fogging.

[OManuel]

As an amateur car enthusiast with some basic knowledge, I tackle window fogging by understanding its root cause. The fundamental reason is the condensation of moisture on the glass due to temperature differences, so balancing the internal and external temperature is key. After getting in the car, quickly turn on the air conditioning in dehumidification mode, press the A/C button to activate the cooler to absorb moisture, and then increase the temperature to blow warm air. If the effect is slow, directly adjust the vents to face the windows for forced drying. Most cars have manual settings to direct airflow arrows towards the fogged areas for better results. For a simpler approach, slightly open the windows for a minute or two when starting the car to ventilate and disperse the moisture. Fogging can impair visibility, especially at night or in the rain, so safety comes first.