Is It Safe to Sleep in the Car with Air Conditioning on in Summer?

1 Answers
AaronLynn
09/04/25 2:45am
Sleeping in the car with the air conditioning on is not safe for your health, as the air inside the car cannot circulate properly. If carbon monoxide emitted by the engine leaks into the car, it can gradually accumulate, increasing its concentration and leading to poisoning. Here are specific details about car air conditioning usage: 1. The recirculation button: When the recirculation button is pressed, the vehicle closes the external ventilation ducts, and all air circulation inside the car becomes internal, blocking outside air. The first function is to prevent polluted external air from entering the car, keeping the air inside fresher. Another function is to maintain warmth inside the car. 2. The mode of internal and external circulation: When the external circulation mode is activated, air flows between the inside and outside of the car, providing ventilation that expels exhaust gases like carbon dioxide from the car and brings in fresh air from outside.
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