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How to Clean and Disinfect Car Air Conditioning?

2 Answers

RowanLynn

09/02/25 4:13am

Methods for cleaning and disinfecting car air conditioning: 1. After starting the car, turn on the air conditioning cooling switch, set the air volume to the minimum, adjust the temperature to the highest, and ensure the air conditioning system is in external circulation mode; 2. Place your hand near the air conditioning intake vent to feel the airflow being drawn into the car, then spray the air conditioning disinfectant cleaner into the intake vent. The cleaner spray will follow the airflow through the air conditioning evaporator and enter the cabin; 3. After spraying the cleaner, close the car doors and windows to achieve better disinfection effects. Ensure no people or pets remain in the car during the cleaning process, which should last about 15 minutes. After completing the cleaning process, open the windows for ventilation; 4. Remove the air conditioning filter and clean it with a high-pressure air gun. If it is too dirty, it is recommended to replace it. Car air conditioning refers to the air conditioning device installed in the car, which can cool, heat, ventilate, and purify the air inside the cabin, providing a comfortable environment for passengers, reducing driver fatigue, and improving driving safety.

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LeDavid

09/14/25 6:26am

I'm used to cleaning the air conditioning system every quarter, mainly because odors tend to accumulate during seasonal changes. First, I purchase a dedicated AC cleaner, remove the cabin air filter, start the vehicle with the external circulation mode at maximum fan speed, and spray the cleaner from the air intake. Listening to the sound of foam being sucked in confirms that dust and mold are being dissolved. After spraying, I close the doors and let it run for ten minutes, then ventilate to dissipate the odor, and finally replace it with a new filter. The whole DIY process takes just half an hour. The key is not to forget cleaning the air vents—using cotton swabs dipped in alcohol to wipe those tiny gaps, especially after the humid rainy season in southern regions when mold is prone to form. After cleaning, even the cold air carries a fresh fragrance.

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