Does the car air conditioning system need cleaning?

3 Answers
McEvangeline
07/29/25 12:49pm
Car air conditioning systems do require cleaning. More relevant information is as follows: 1. The function of a car air conditioning system is to provide a comfortable and healthy environment for passengers. During the operation of the air conditioning, the evaporator absorbs heat from the car to lower the temperature inside. Due to its low surface temperature, it remains in a damp state, which makes it prone to accumulating germs, dust, and other debris, especially in vehicles without an air filter. While driving, a large amount of dust and dirt can enter the air intake of the air conditioning system, accumulating in the air ducts and on the surface of the evaporator. On one hand, this can block the ventilation holes of the evaporator, reducing airflow; on the other hand, in a high-humidity, enclosed environment, it can breed a large number of harmful bacteria. These bacteria float in the air inside the car as it circulates, causing symptoms such as dizziness, fatigue, and nausea. Prolonged exposure can lead to respiratory diseases, posing health risks. 2. If not cleaned for a long time, when you turn on the air conditioning, you may notice musty, smoky, or foul odors, which are the root causes of health hazards. Therefore, regular cleaning is essential, especially before using the air conditioning in summer and the heater in winter. Generally, cleaning every 40,000 kilometers is recommended, including the evaporator and air ducts, followed by replacing the air filter.
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MaggieFitz
08/14/25 1:19am
I think car air conditioning cleaning is really crucial, especially since it affects health. The air conditioning system is damp, and over time, dust and mold can accumulate. When you turn on the AC, those tiny particles get blown out and can be inhaled into the lungs, potentially triggering allergies or respiratory issues. This is particularly important for families with children. I have a history of asthma, and without cleaning, I often feel chest tightness and shortness of breath while driving. After regular cleaning, my breathing has improved significantly. Cleaning isn’t expensive—just once a year is enough. Using professional disinfectants to spray the evaporator and remove mold spots can also enhance the air quality inside the car, protecting your family's health.
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LukeRose
10/09/25 6:04am
As a long-time driver, I find that cleaning the air conditioning is super important for maintaining performance. When the air filter and ducts accumulate dust, the airflow becomes less cool, and it can even reduce the compressor's efficiency, increasing fuel consumption. I clean mine every two years, including blowing out debris from the ducts. After cleaning, the cold air comes faster and stronger, making summer drives cooler and more fuel-efficient. If left uncleaned, dirt buildup can lead to compressor failure, and repairs can be very costly.
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