Does turning on the air conditioning in a car in summer cause fogging on the outside or inside?

1 Answers
McRebecca
07/29/25 7:33pm
Turning on the air conditioning in a car in summer causes fogging on the outside. Precautions for using air conditioning in summer: Do not turn on the air conditioning immediately after exposure to the sun: Many cars are exposed to the scorching sun in summer, and many people tend to start the car immediately, turn on the air conditioning, and set the fan speed to high to achieve the fastest cooling effect. However, this is not a reasonable approach. After starting the car, first lower the windows on both sides to allow outside air to circulate, which can quickly reduce the temperature inside the car. Avoid using the recirculation mode for extended periods: The recirculation mode works by circulating air within the enclosed space of the car, which leads to a continuous decrease in oxygen levels inside the vehicle. Additionally, if the gasoline in the cylinders does not burn completely, unburned carbon monoxide from the engine may leak into the cabin, causing the air quality inside the car to deteriorate and potentially harm the occupants. When the vehicle is stuck in traffic in a busy urban area or facing headwinds, the recirculation mode can be used to prevent exhaust fumes from entering the car and keep the interior air clean. In other situations, it is recommended to use the fresh air mode as much as possible.
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