It’s up to the DM if it comes across like a portal to enter the bag or an impossible space like the TARDIS. Air does not flow between as you can suffocate and air would carry the sound, but I always rule it as feeling more like in impossibly large space rather than a magical portal.
I always interpreted the suffocation to be only while the bag is closed. It doesn’t make much sense if physical objects can enter the bag but not air. Why not?
It’s up to the DM if it comes across like a portal to enter the bag or an impossible space like the TARDIS. Air does not flow between as you can suffocate and air would carry the sound, but I always rule it as feeling more like in impossibly large space rather than a magical portal.
I always interpreted the suffocation to be only while the bag is closed. It doesn’t make much sense if physical objects can enter the bag but not air. Why not?
Creating the bag would create a very big underpressure, immediately imploding the bag and probably killing the creator