Read More: Montana Wildfire Smoke ForecastPhoto by Roy Muz on Unsplash gray and black fan turned on in close up photographyHere's where the fan debate arises. But when it comes to which direction the box fan in our bedroom window should go, we do not see eye-to-eye. We have two windows in our room, and she believes that the fan in one of the windows should be blowing cooler air into the bedroom. Consumer Reports says you should direct your window fan to blow hot air out. When a fan is blowing air across our skin, it makes us feel cooler, even if it's not cooling the overall temperature in the room nearly as efficiently as a fan blowing hot air out the window.