[philwelch]

That's less than half of what they keep the ISS at, BTW.

[koheripbal]

wow, you are right. Then again, I suspect they're challenged to keep it low given the space. Seems astronauts report headaches more above that level.

[philwelch]

I’m honestly just a huge skeptic about indoor CO2 levels. OSHA says 5000 ppm is a safe upper limit, and nuclear submarines operate at pretty high levels too. I strongly suspect this is just one of those weird social media health crazes.