Can you sleep for several hours with the car windows closed?

1 Answers
RowanLee
07/30/25 7:52am
It is not recommended to sleep. Here are the relevant explanations: 1. Carbon monoxide poisoning: When the car is idling with the air conditioning on, whether in internal or external circulation mode, the concentration of carbon monoxide inside the cabin will increase. Carbon monoxide is a colorless and odorless gas, making it undetectable to people. When the carbon monoxide concentration in the cabin reaches a certain level, carbon monoxide poisoning can occur in the human body. This can cause discomfort, dizziness, headaches, blurred vision, difficulty breathing, etc. If the concentration continues to rise, it can lead to death due to oxygen deprivation and suffocation. 2. Potential tragedy: The exhaust gases produced during the engine combustion process contain carbon monoxide, and the cabin is not completely sealed. If the car is not in a well-ventilated environment, carbon monoxide can seep into the cabin, increasing its concentration and ultimately leading to a tragic incident.
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