Can You Sleep in a Parked Car with the Air Conditioning On?

[Lilliana]

It is not advisable to sleep in a parked car with the air conditioning on. Here are the specific reasons: 1. Increased Carbon Monoxide Levels: When the car is stationary and the air conditioning is running, the engine idles. During idling, the fuel does not burn completely, leading to the emission of exhaust gases containing high levels of carbon monoxide. This carbon monoxide can accumulate around the vehicle and enter the cabin through the air conditioning system. With the windows closed and no air circulation, prolonged exposure can lead to carbon monoxide poisoning, loss of consciousness, and even suffocation. 2. Engine Damage: Running the air conditioning while the car is parked for extended periods means the engine is idling, which increases fuel consumption and contributes to the buildup of carbon deposits in the engine.