It has adequate ventilation so the chance of running out of breathable air slim to none. It's original function isn't much of an issue in regards to the repurposing I am placing on it.
[Translation: No it's not meant for humans to use as Red is doing, but he can deal with the tiny space.]
[Video]
[Translation: No it's not meant for humans to use as Red is doing, but he can deal with the tiny space.]