What about heat issues? There is a heat generating ship inside, we probably get varied solar input -- won't that altogether cause some significant changes in temperature of the air (risking burns and frostbite to people exposed directly to it) and significant pressure changes? Burns and frostbite might be an exaggeration, as there is next to none convection there and (probably, this is my intuition only) less heat transfer to air due to low pressure, but it can interfere with suit temperature controls.
I'm also somewhat curious how do they deal with pollution under airskin -- various evaporating liquids from the ship, gases venting from it, moisture -- probably they use water evaporators (or sweat evaporation through suit) for suit cooling (one hour of suit operation would use up on the order of 100g of water for cooling of body heat alone). Probably they won't have any moisture problems, as the amount they can generate is limited by their water supply, but I would be concerned about small amount of propellants making it into the atmosphere under airskin, unless they use heated neutral gas for that.
By the way, the amount of air in there is truly massive -- I figured >10tons if at near-Earth temperature, decreasing linearly with temperature.