a odd question for the more physics minded people out there. the interaction with a mid sized creature in a closed portable hole with a bottle of air. yes the bottle of air ups the amount of time that you could live in the hole for. the base being 10 mins. how long would it take for the bottle of air to make too much air for the portable hole to become so pressurized that it kills what ever is in there. and if a creature was in the hole for a time and there was presher build up and got out before the presher was enough to kill it would the creature have the bends.
i ask because my group has been putting party members in the hole, with bottle of air in it, and having the monk run for a day with the potable hole for faster travel. and i just saw this flaw with it. if it even is a flaw.