even with good indoor climate control, the outdoor weather still has impact on indoor conditions. I've never seen anything that might control the air pressure for one thing.
aways wanted a barometric/hyperbaric chamber as my padded cell - but with full facilities such as musical instruments (and of course computer interface too once that became a thing).
even just maintaining a "very similar to atmospheric pressure" on the size of being able to move about would be very very very expensive. Even just a small 3x6m or something... is really expensive, but those are significantly higher/lower than atmospheric pressure.
Hm, yeah there may be things like what I think you're referring to which could handle it. I think I saw something in California that had some pretty serious seals, which I don't remember if any of that was air pressure.