What is the Normal Temperature Range for Car Air Conditioning?
3 Answers
Car air conditioning should maintain the interior temperature between 18°C and 25°C. Specific details are as follows: 1. Temperature should be appropriate: Setting the temperature too low can affect health, so it's essential to adjust the air conditioning temperature appropriately. The most comfortable temperature for the human body is between 20°C and 25°C. Above 28°C, people will feel stuffy, while below 14°C, they will feel cold. Therefore, the air conditioning should keep the interior temperature between 18°C and 25°C, as excessively low temperatures can easily make people sick. 2. Do not turn on the air conditioning immediately: When a car has been parked in the scorching sun for a long time, some owners prefer to turn on the air conditioning and switch to recirculation mode right after starting the car, thinking this will cool the interior faster. However, since the interior temperature is higher than the outside temperature, this approach is ineffective. Upon entering the car, it's better to open the windows for ventilation and turn on the external circulation to expel the hot air. Only after the interior temperature drops should you switch to recirculation mode.
I've been driving for almost twenty years, and there's a lot to consider when it comes to air conditioning temperature. In summer, the normal range is generally between 22 to 26 degrees Celsius, and I usually set it around 24 degrees. This way, it doesn't put too much load on the engine, and you won't sweat. In winter, setting the heater to 23 degrees is quite comfortable—any higher can make the air too dry. Also, pay attention to switching between internal and external circulation. Use internal circulation in traffic jams to avoid exhaust fumes, and external circulation on highways to refresh the air. Temperature settings should also consider the weather. On the hottest days, you can first open the windows to cool down before turning on the AC, while on rainy days, you might need to use the defogging function. Avoid directing the vents straight at your face; adjust them upward to prevent catching a cold.
As a parent who frequently travels with the whole family, I believe the air conditioning temperature should balance comfort and health. Setting it between 24 to 25 degrees Celsius is generally safe, as it reduces the risk of colds for both children and the elderly. Our car has rear air vents, so I adjust the temperature to match the front, avoiding any temperature differences. I also pay attention to switching between internal and external circulation—using external circulation initially to ventilate, then switching to internal circulation to maintain the temperature once it's cool. In summer, it's advisable to ventilate the car for a few minutes before turning on the AC, as this cools the car faster and saves fuel. Additionally, replacing the AC filter annually is crucial to prevent unpleasant odors from the vents.
