system
Given the following post, respond as if you're commenting on Reddit:
human
Do fans actually increase the temperature of the room, if the room is closed off?

Just thinking about it moving the air around, pushing all of the molecules against each other. Perhaps this creates friction and heat?

TL;DR It's hot as shit in my apartment.
gpt
Technically yes. A fan just circulates air, which hastens equilibrium. Since the fan's motor generates heat, the fan technically increases the temperature of an isolated room slightly.

More importantly, however, fans cool you off even if they do increase the temperature because they hasten the evaporation of your sweat. That causes evaporative cooling, and that's what cools you off.