You can get rid of the temperature problem too, via Genetics, but I couldn't remember pressure what do, so I wrote Spacesuit. But it's either that pressure damage is due to no air, or if not, it's a bit more complex, but doable with Toxic Compensation + Toxin Filter symptom combo. Then it will turn the pressure brute damage into toxin damage which will be healed by Toxin Filter symptom.
Actually, you can do this via medicine as well. Dexaline Plus will resolve O2 deficiency, and Leporazine resolves cold damage. You can make a 25/25 pill of both, and chug a few to stay warm and oxygenated in the dead of space.
Curiously, spacing seems to cause Brute damage, so a few pops of Bicardazine would also resolve this, probably some Dermaline as well for minor burn damages caused in space.
Doing some maths... 300 each of Dexaline+ and Leporazine would make 6 pills. D+ produces in batches of 30, and L in batches of 20. So 10 and 15 batches worth. This should suffice you to survive in space for a surprising amount of time, and only cost 60 energy from the chemist (max 50 energy per machine, recharges slowly).
Pressure seems to cause damage, I believe that's mainly brute damage, which can also be cured with meds.
But again, so does an oxygen tank - you need a constant supply of a resource that gets used up as you go, no matter if it's Oxygen or Meds. Meanwhile, in the grim Biotechnologyness of the 25th century, there is only self-sustaining synthesis (alliteration, woo!). Toxycombo (Toxic Compensation + Toxin Filter combo is an awful lot of typing) + Self-Respiration + self-heating gene means you are now pretty much invulnerable as long as the damage you get does not exceed the threshold of what Toxycombo can heal over time (which I must investigate).
For bonus transhumanism points, add Sneezing. Enjoy the station turning into a bunch of virtual immortals sneezing at each other until they die of old age (although there's a symptom for that as well, Eternal Youth).
Also, I need to write a book like "100 things to do as Virologist". And I probably will, once we *cough*update*cough*. Sorry, must've contracted a spess virus.*cough*