How to Use Car Air Conditioning on Rainy Days?

[HarperDella]

Turn on the air conditioning's cooling mode and then activate the AC. Only when the AC is turned on will the air conditioning cooling system start operating, at which point the air conditioning compressor begins to work. Direct the airflow towards the windshield, and the fog will gradually dissipate. Wait until visibility is completely clear before driving on the road.

[DelDiana]

When driving on rainy days, I always start by turning on the air conditioning system and pressing the AC button for dehumidification, which effectively prevents window fogging. I set the temperature between 22-25 degrees Celsius and switch to the external circulation mode, allowing the humid outside air to be dehumidified. If the windows fog up, I immediately increase the fan speed or activate the defogging function to ensure clear visibility. At the same time, I avoid driving too fast and maintain a safe distance because the road is slippery in the rain. Running the AC at high settings may increase fuel consumption, but safety comes first—it's more important than saving fuel. I've also noticed that regularly cleaning the AC filter improves efficiency. Overall, this method is simple and practical, preventing fog from interfering with driving and enhancing road safety.

[Sue]

As someone who often drives to pick up family members, I'm very particular about using the air conditioning on rainy days: I turn on the AC's dehumidification function, adjust the temperature to a comfortable range, and activate the external circulation to keep the air flowing. This helps quickly defog the windows and prevents children or elderly passengers from catching a chill. Additionally, I make it a habit to run the AC when starting the car, reducing the fan speed only after the interior has dried out. If the windows fog up, I use the one-touch defog button on the center console for convenience and efficiency. For health reasons, I regularly check the AC vents for mold to ensure fresh air quality. With low visibility during rain, proper AC usage helps maintain clear vision and reduces accident risks. This routine is both practical and safe.

[DelGiselle]

When driving in the rain, the air conditioning is an essential helper. Turning on the AC for cooling and dehumidification works because the compressor absorbs moisture while running, preventing window fogging. I set the temperature to medium with higher fan speed to accelerate dehumidification. The external circulation mode is crucial to ensure fresh air flows in. If fogging is severe, I close the windows and turn up the AC for a few seconds to quickly resolve it. This method stems from the principle of AC dehumidification: cold air condenses moisture on warm glass, which is then removed. For safety, using it in combination with windshield wipers is even better. I also pay attention to power consumption, only activating necessary functions to avoid waste. These techniques ensure a comfortable driving experience.