: Why do you feel cold air from an air-conditioned room coming out under a closed door into a warmer room or corridor?

Question

Room has air-conditioning going, cooler than corridor. Much cooler.

I can feel the cold air coming out from under the closed door when standing in front of it.

Why?

In: 3

Answer 1

Do you have central air conditioning? If so then somewhere in your house, usually near the thermostat, there is an air intake that brings room air into the AC evaporator to cool. Then the cool air blows into the room and has to make its way back to the intake.