What about the child’s friend who is visiting for a sleepover?

Wait, can anyone invite them in? Not just the people living there?

This one? https://youtu.be/0Hwjmek0Uvw It more addresses survivability in space, but unfortunately not the „drain earth of its atmosphere“ thing. Then again, in game the portal was closed quickly again.

I remember that video, but I‘m not sure it is comparable — air might flow faster than water [citation needed] and there might be less of it [citation needed].

How fast would this suck up all of our atmosphere? Hours? Days?