Your summer just got a whole lot more comfortable.

You’ve probably noticed the air recirculation button among the various bells and whistles on your car’s dashboard.

You might even push it from time to time, but do you actually know what it does?

Car Air Conditioning

Credit: Tsuji / Getty

How Does the Air Recirculation Button Work?

And the longer it’s on, the cooler your car gets.

However, you should avoid using the air recirculation function during the winter.

If it doesn’t, you might want to have a mechanic take a look at it.