Look, I know what you’re thinking. “This is the stupidest article I’ve ever read, and, separately, I’m not as cool as I should be right now.”

First, trust me a little, okay? When, other than sometimes, have I ever steered you wrong? And for the second part, well there’s a reason for that. Now most people, myself included, follow the simple and useful method of using the fan to blow on you to cool yourself of. Aimed right at your body, it’s game over. Right? Not quite. Because while that works on the immediate goal it doesn’t work long-term. That’s because fans don’t create any new air: they just move existing air around. If you really want to change the temperature of the room (and if a few people are arguing of the fan) you have to have the fan face outside in your window.

Assuming you have two windows, leave them both open with the fan aimed spinning the air towards the outside. Thanks to our good personal friend science, this method works best. This way you move the hotter air out of the room which is then replaced with the newer, cooler air outside. The cycle creates a minor wind current in your room and will create a much more normalized cool throughout the room as opposed to a direct short-term gain.

For this to be effective you’d ideally need a second fan to help or one good fan (not a mediocre one; save that for the direct cooling) to do the job.

Pretty neat huh? A super do-able tip that’ll cool you off in the summer without increasing an electric bill crazily, requires minimal set-up, or is an air conditioner. This trick isn’t a drastic change but it does level out the room nicely, give you better breathing air, and drops the heat a few degrees as well as cutting out a little humidity. It won’t make it feel like crisp fall, but it’ll turn a terrible sweaty night into merely a bad one and it’ll turn a bad one into O.K. This summer, that’s pretty darn good.