Check out vornado. They make, or at least used to make, a few models that might fit your needs. I've had one of their vent fans for a couple of years now, and it gets the job done well. Definitely not going to leave a gap anyone can get through, puts out good air flow when blowing in, plus can serve to vent air outside when needed. But they've got other options.
Check out vornado. They make, or at least used to make, a few models that might fit your needs. I've had one of their vent fans for a couple of years now, and it gets the job done well. Definitely not going to leave a gap anyone can get through, puts out good air flow when blowing in, plus can serve to vent air outside when needed. But they've got other options.
TIL thin window fans are a thing!
I'm not surprised they exist, just had not noticed one before. Will probably see them all around now that I'm aware they exist.
Can confirm they're everywhere "temperate". Except Korea.