Very well done atmosphere!
I had no clue what to do with the Mobility section.
The first time I got distracted toward the end of the monologue leading to it, because by that time the Pressure system was on the verge of collapse again. I panicked and got it under control, then wasn't sure which station I was supposed to head to. Went to Mobility, which gave the ability to interact, so that seemed right. I had no clue how to "follow the instructions", or what the instructions might be, beyond three beeps, and exploded after pulling levers at random.
The second time I was prepared, listened attentively, and tried again. Go to the mobility section, instructions would be sent. I hear three beeps, I try the right handle, that's wrong. Three beeps again, I try the middle handle, that's wrong. I try pushing 3 on my keyboard, nothing happens. Maybe at this point I should have tried the first handle? That didn't make any sense to me, it was three beeps so it must be the right handle. But it wasn't. Maybe I didn't use the middle handle correctly, then I exploderized.
Restart for a third time... knowing I have to do the entire intro and second puzzle again, to get back to the one I still don't understand. A checkpoint system would be appreciated, I think! Or the ability to skip ahead past already seen dialogue at least. Or for the game to run in the background while I type my progress so far in this paragraph. :)
So, third attempt with Mobility. Three beeps. I pull first lever. Nothing bad happens, an arrow on the display turns green. I pull third lever, still nothing bad, so then I try the middle lever. 1 turns green on the display, that's progress! Now I hear four beeps... no indication of anything else. I try first lever, failure. Four beeps, I try third lever, failure. Four beeps, I try middle lever, explosion. No idea what I'm missing, sorry!