How to ventilate in the car on rainy days?
3 Answers
Close the windows and turn on the air conditioning's external circulation. On rainy days, if the temperature is moderate and you just want ventilation, simply turn on the fan for ventilation without pressing the air conditioning button. If it's stuffy and hot, you can press the air conditioning button. Note that it is recommended not to sleep or rest in the car. Here are additional notes on precautions for resting in the car: 1. Open the window for ventilation: Leaving a small gap can also facilitate air circulation. Whether it's a hot summer or a cold winter, this gap might be a lifesaver. 2. Turn on the car's external circulation mode: Many car owners are accustomed to using the internal circulation mode for air conditioning, which is not wrong. However, during rest, it is recommended to switch to the external circulation mode. 3. Regularly check for exhaust pipe leaks and whether the windows are sealed: If carbon monoxide from the vehicle's exhaust leaks into the car, it can gradually accumulate and increase in concentration, leading to poisoning. If the exhaust pipe is damaged, exhaust gases can more easily enter the car, increasing the risk. The same consideration applies to keeping windows closed. 4. Try to park the vehicle in an open outdoor area: Confined spaces are more likely to cause carbon monoxide buildup, and some underground parking garages inherently have poor air circulation. When resting, the vehicle should be parked in an open outdoor area to ensure fresh air circulation.
I've driven in rain for years, and ventilating without getting wet is easy. Turn on the air conditioning in recirculation mode first to clear fog, then switch to outside air once the windows are dry. If it's light rain, crack the side windows about an inch—this creates airflow without letting water in. Also, use the front defroster to keep visibility up and avoid stuffiness. I always adjust the fan speed based on how humid it feels inside; low speeds work fine if you're parked, medium when driving. Remember to check that the air vents aren't blocked—sometimes junk piles up. This approach helps reduce drowsiness and keeps the air fresh, which is great for long trips in wet weather.
As a regular commuter who hates stuffy cars, I rely on simple tricks for rainy days. Start by activating the external air intake on your dashboard—this pulls in rain-cooled air while filtering it. Set the fan to medium and aim the vents at the windshield to prevent fogging. If the downpour isn't heavy, open the windows slightly at the top for cross-ventilation without soaking seats. I also love using the air conditioner's dehumidifier setting even in winter—it dries the air fast. Add a small fan accessory for extra circulation if needed, just to avoid that clammy feeling. This keeps odors and bacteria at bay, making drives more pleasant.
