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Should You Use Internal or External Air Circulation on Snowy Days?

1 Answers

Jamie

07/30/25 2:43am

When using the heater in winter, first turn on the external air circulation, then switch to internal circulation. How to use the air conditioning in winter: When starting the car, the engine begins to warm up. Wait until the engine temperature gauge needle points to the middle position, then turn on the warm air conditioning and set the air circulation to external circulation to expel the cold air from inside the car. After 2 to 3 minutes, switch the air circulation to internal circulation. Precautions: If cold air continues to enter the cabin, the air blown out will not be very warm, and you may still feel a bit cold inside the car even with the heater on. If the outside temperature is indeed very low, alternate between internal and external circulation. However, do not use internal circulation continuously to increase the cabin temperature, as this prevents air circulation inside the car, leading to no fresh air entering the cabin. This can result in poor air quality inside the car, affecting your health.

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