What Happens If You Keep the Air Conditioning On in the Car for a Long Time?

1 Answers
OwenMarie
07/30/25 9:14am
Keeping the air conditioning on in the car for a long time can have the following hazards: 1. Oxygen deprivation: The cooling principle of the air conditioning is the same as that of a refrigerator. The air conditioning does not exchange the air inside the car with the outside; it only exchanges heat. Therefore, the oxygen in the limited space will quickly be depleted. 2. Carbon monoxide poisoning: The confined space inside the car is airtight, and many people like to turn on the car air conditioning in poorly ventilated cars. Since it is difficult for air inside and outside the car to circulate, carbon monoxide emitted by the engine during prolonged operation may gradually accumulate inside the car. In addition, the oxygen in the car is gradually consumed by the breathing of the occupants, who exhale carbon dioxide. Over time, the oxygen level in the car decreases, and the occupants may unknowingly suffer from poisoning and lose consciousness, which can be life-threatening in severe cases.
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