I understand why they are used in movies. My question was where that came from, whether this was a thing Americans actually do irl and if that is the case why they do it.

Thankbyou for your answer. In this movie it does not affect the plot.But it is also something one only ever sees in us movies so I wondered if this was something Americans did IRL.

Maybe american viewers will be so kind as to tell us in what kind of context they do see ribbons in real life and even post a few pictures?

It would only tell you whether air is flowing, not whether that air is hot or cold.

Whether the air is running or not is irrelevant to this scene, die example. So that is why I wondered whether it wasbrrue that there were ribbons everywhere on vents in the US.

It is strictly irrelevant to this scene, for example.

I… Got that part.

Whether the air is blowing or not is strictly irrelevant to this scene. something has been hidden inside the vent which the protagonist is about to find out when the picture was taken. We will never come back to this bathroom later. As a matter of fact it would have made sense if the ribbons were not floating and the object was big enough to obstruct the vent, but this is not the case here.

I am fairly well traveled. I know mostly countries in Europe, Latin America and Africa, and I never noticed anyone doing this in any hotel, public building, private house or plane or train… Never been to the US though, so I wondered if it was real thing people do.

Actually in this movie it doesn’t matter. Something has been hidden behind that vent which the protagonist is about to findbout in a second.We will never come back to that bathroom.