Air Circulation Question

I have a open bedroom grow room. it is warmer than id like in the room, but cooler in the hallway.

i have a box fan, question is which way to point it... justso uh pullin a blank x 4

blow the hot air out or cool air in? fan will be in doorway on ground or on a chair is as high as i want to go. thanks friends peace

Cool air in?

I would just try both and see how temps vary in an hour or two