What is the appropriate temperature inside a car?
2 Answers
The appropriate temperature inside a car is between 20°C and 27°C. If it exceeds 28°C, people will feel hot, and if it drops below 14°C, people will feel cold. It is necessary to regularly switch between the internal and external air circulation modes in the car. If the car remains in internal air circulation mode for a long time, the oxygen level inside the car will gradually decrease, and carbon monoxide produced by the engine may accumulate inside, which can easily lead to poisoning. Regularly activating the external air circulation mode can bring fresh air into the car. In summer, a car parked under the scorching sun may reach temperatures as high as 60-70°C inside. In such cases, it is advisable to first open the doors and windows, wait for two to three minutes to let the hot air escape before entering and starting the car. Do not close the windows immediately; instead, turn on the external air circulation of the air conditioner first. Once the temperature inside and outside the car becomes similar, you can then close the windows and switch to internal air circulation.
I find maintaining the car interior temperature around 22°C most comfortable - neither too high nor too low, preventing sweating from heat or shivering from cold while driving. As a frequent commuter, I've observed this temperature helps maintain focus and avoid fatigued driving. In summer, higher temperatures induce drowsiness, while winter's lower settings cause shivering, both impairing reaction times. Additionally, set fan speed to moderate, preferably in auto mode, coupled with air recirculation to minimize external pollutant intake. Humidity control matters too - increase ventilation when too dry, activate AC dehumidification when too damp. Remember, temperature preferences vary - elderly and children may need slightly higher settings, but generally 20-23°C is safe. Make seasonal micro-adjustments: maintain 22°C in spring/autumn, shift toward 21°C or 23°C in winter/summer to optimize AC efficiency and reduce fuel consumption.
