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How Long Can You Run the Air Conditioner While Parked?

1 Answers

MicahDella

07/30/25 3:02am

In theory, if the car has fuel and battery power, the air conditioner can run indefinitely. However, in reality, running the air conditioner while parked typically lasts no more than 15 minutes. Below are some considerations regarding running the air conditioner while parked: 1. Keeping the air conditioner on for extended periods while parked can easily lead to carbon monoxide poisoning, and such incidents are not uncommon. Previous experiments have shown that in an enclosed space, it takes only 20 minutes for a car with the air conditioner running to exceed safe carbon monoxide levels. 2. The main concern with running the air conditioner while parked is the fuel cost, but safety should also be a priority. Since the air inside the car cannot circulate, if carbon monoxide from the engine leaks into the cabin, it will gradually accumulate, increasing its concentration and leading to poisoning. There have been many cases where people fell asleep and never woke up due to this.

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