Well, some of it might manage to go out the window.
Most of that will probably hit another building, or a tree, or the ground, or something, and get absorbed (and permitted), but some of it might not hit anything solid and carry on into the atmosphere... where a good part of it will end up hitting a cloud, or a nitrogen atom, or a pigeon... but some might end up in space. And carry on for aeons, into the cosmos.
They ain't safe for seven or older people either.