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Which way do your windows open?
(lemmy.ml)
To let a breeze into your room, do your windows open out from the bottom or the top?
If your windows are stacked (upper and lower) which part opens and which part stays fixed?
(Germans with 3D windows don't count. Lüften is a weird cultish ritual and you should all feel bad.)
Some that slide up from the bottom, and some that swing out like a door.
My last house had some like in your thumbnail, some ancient ones with (layers of) small windowlets that slid sideways, and some modern door-style ones as well.