Why Can Sleeping in a Car with the Air Conditioning On Lead to Poisoning?

1 Answers
LaJuniper
07/24/25 6:59pm
Keeping the air conditioning on for a long time while the car is parked can be very harmful to the human body. Here is the relevant information: 1. Incomplete Combustion: When the car engine is running, if the gasoline in the cylinders does not burn completely, it produces high concentrations of carbon monoxide. While the car is moving, the air passing through the air conditioning system creates convection, keeping the carbon monoxide concentration inside the car very low. 2. Air Circulation: When the car is stationary with the air conditioning still on and the doors and windows closed, the air inside the car cannot circulate. If carbon monoxide from the engine exhaust leaks into the car, it can gradually accumulate and increase in concentration, leading to poisoning or even death.
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