system
Given the following post, respond as if you're commenting on Reddit:
human
Cooling a hot room with a fan and a window.

Say you're in a uncomfortably warm room, the window's open but there's not much air movement.

If you put a fan in front of the window will the room cool down faster if the fan is pointing into the room (to blow cool air into the room) or pointing out (to blow hot air out of the room)?

Secondary question, is doing this any better than just pointing the fan at me? The aim here is to cool the room down.
gpt
Both of those are better than pointing the fan at you.

Keep in mind that the fan creates undirected suction on the back, so it draws air in from all over the place - even in front of the fan. 

If you place it in the window to blow air in, the further out the better. If you place it in the window, blowing out, it'll take some of the outside air, and blow it straight out again.

The stream of air that the fan creates in front of it, is highly directional, and pulls in more air around the airstream. If you place the fan as far away from the window as possible, it'll pull hot air into the airstream as it passes through the room and out of the window.

There is no one true best place, but with this knowledge, you'll be able to find the best solution for your room.

Overall, the good options are:

* in the window, blowing air at the farthest corner of the room

* in the farthest corner of the room, blowing air out the window.