What should be noted when using car air conditioning?

2 Answers
LolaRose
09/07/25 4:44am
Precautions for using car air conditioning are as follows: 1. Do not set the air conditioning temperature too low. Excessive temperature difference between inside and outside the car can easily cause the driver to catch a cold, while excessively low temperature may also pose a risk of arthritis for passengers. 2. Control the direction of air vents. Based on the principle that cold air sinks and hot air rises, when controlling the air vents, owners can follow this guideline: point the vents upward when cooling and downward when heating. 3. Do not turn on the air conditioning immediately after the car has been exposed to the sun. After being exposed to the sun, the temperature inside the car is usually very high. It is best to open the windows for ventilation first and wait for the hot air to dissipate before turning on the air conditioning. 4. Turn off the air conditioning before shutting down the engine.
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StVanessa
09/19/25 4:04am
Seeing you ask about car air conditioning usage reminds me of the experience I've accumulated over years of driving. Don't rush to turn on the cold air immediately after getting in the car, especially after summer sun exposure when the interior feels like a steamer. First, open the windows for ventilation for two to three minutes before turning on the AC - this cools faster and protects the compressor. Don't set the temperature too low; maintaining about a 7-degree difference from outdoor temperature is most comfortable, otherwise you might catch cold or get joint pain. Turn off the cooling five minutes before parking but keep the fan running to dry the air ducts and prevent musty odors. Remember to run the fan at high speed for a few minutes during seasonal changes to remove dust, and replace the cabin air filter at least annually - otherwise the air blowing out will be full of bacteria. Always switch to recirculation mode during traffic jams to avoid sucking exhaust fumes into the car.
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