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Can You Sleep in the Car with the Air Conditioning On in Summer?

2 Answers

SanEverly

07/30/25 1:59am

You should not sleep in the car with the air conditioning on in summer due to the following impacts: 1. It accelerates the generation and retention of engine carbon deposits; 2. It hinders effective heat dissipation, leading to high engine water temperature; 3. It places a significant load on the engine cooling system; 4. It reduces the engine's service life; 5. It may cause carbon monoxide poisoning for occupants. The method to turn on the car air conditioning is: 1. Rotate the knob in the air conditioning control area for cooling or heating; 2. Press the AC button when cooling is needed. The functions of car air conditioning are: 1. To provide a comfortable environment for passengers, reducing travel fatigue; 2. To create favorable working conditions for the driver. Car air conditioning, also known as the automotive air conditioning system, is used to adjust and control the temperature, humidity, air cleanliness, and airflow inside the car cabin to an optimal state.

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LaEdward

08/15/25 7:55am

I once had a neighbor who did something equally foolish—sleeping in the car with the AC on during a hot day to stay cool, only to nearly lose his life. It was only afterward that he realized how terrifying carbon monoxide poisoning could be. Those exhaust fumes are colorless and odorless, but inhaling too much can cause dizziness, nausea, and even unconsciousness. When the car engine is running, the exhaust gases can silently seep into the cabin, especially in summer when the car is sealed and airflow is poor, multiplying the risks. Some people think a short time is harmless, but just a few minutes can lead to serious trouble. My advice is simple: never attempt this. If you need to rest, go to a service area or find a safe spot to park, and always keep the windows open for ventilation. Safety first—don’t pay the price for momentary convenience.

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