Any room that was so airtight this would be a concern has already taken that into account. Air will get in under the door, through cracks or fixtures, or even the window the fan is in.
DarrinBrunner@lemmy.world 3 hours ago
The air you’re pushing out needs to be replaced somehow. If there’s only one window open, then the only place for air to come in is through that same window, and it won’t work too well. But, if you have two windows open on opposite sides of the room, then that would work very well. If there is a second window open anywhere in the house, the air will be pulled through the house from that window.
But, also simply stirring it around will dilute it, and make it less noticeable.
meco03211@lemmy.world 2 hours ago
RodgeGrabTheCat@lemmy.ca 3 hours ago
My window fan says air can be exchanged with a single window.
Best if the fan has two blades moving in different directions.
Air exchange will work with a fan blowing in or out only. Leave the louvers around the fan closed, close the room door and air has to escape through the window around the fan.
My room gets very chilly by morning doing this.
JeeBaiChow@lemmy.world 1 hour ago
Trying to iimagine a fan with blades in different directions…
Feathercrown@lemmy.world 1 hour ago
Window fans have two sets of fan blades side by side. They can spin in opposite directions.
NeatNit@discuss.tchncs.de 50 minutes ago
Why?