How to Use Car Air Conditioning Properly?

3 Answers
Kimberly
07/29/25 12:45pm
When using the car air conditioning, it's better to open the windows to expel the air before turning on the AC. Here is an introduction to car air conditioning knowledge: 1. Introduction: The car air conditioning system, referred to as car AC, is used to adjust and control the temperature, humidity, air cleanliness, and air flow inside the car compartment to the optimal state, providing a comfortable riding environment for passengers and reducing travel fatigue. 2. Turn off AC in advance: When the A/C button is turned on, the car's cooling equipment starts operating, and the moisture generated during the operation of these devices, combined with the hot and stuffy environment of the engine compartment, creates an ideal condition for mold and bacteria to grow. Over time, the air conditioning can produce odors, such as sour smells. Therefore, it's advisable to turn off the A/C a little before reaching the destination and then increase the fan speed slightly to allow the air to dry out the ducts, making it harder for mold to grow.
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LaDaniella
08/14/25 1:03am
Actually, using the car air conditioner effectively isn’t difficult. I learned a lot from when I first started driving. After getting in the car, don’t rush to turn on the AC. In summer, first roll down the windows to ventilate for a while, letting the hot air escape before pressing the A/C button. Don’t set the temperature too low—around 23 degrees is the most comfortable and also saves fuel. Start with a low fan speed, then reduce it to medium once the car cools down. Remember, using recirculation mode cools the car faster, but don’t keep it on for too long. Switch to fresh air mode occasionally to let in fresh air and prevent window fogging or dizziness. The same goes for winter heating—don’t blast hot air immediately after starting the car. Wait a few minutes after a cold start to turn on the heater, protecting the engine. Also, change the air filter regularly. I check it during my annual maintenance—otherwise, it can get dirty, causing odors and reducing efficiency. In short, simple operations and regular maintenance will keep your AC comfortable and durable.
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McOscar
10/09/25 5:44am
As a commuter who frequently drives on highways, I focus on efficient air conditioning usage to save on fuel costs. After starting the car, turning on Auto mode allows the vehicle to automatically adjust the fan speed and temperature. Setting the temperature between 22-24°C is the most energy-efficient—avoid setting it too low or too high to prevent the compressor from overworking and consuming extra fuel. When manually controlling the fan speed, start with a medium setting to cool down before lowering it, as high fan speeds increase power consumption due to faster fan rotation. The air recirculation mode is crucial: in summer, switch to external circulation once the cabin is cool to maintain airflow; in winter, balance warmth with ventilation to prevent fogging. Don’t forget to clean the air vents—dust buildup can block airflow, so I vacuum them monthly to ensure even air distribution. Long-term, maintaining the AC system can reduce fuel consumption by 10%. Visit a repair shop annually to replace the filter and check refrigerant levels.
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