alt Hacker NewsA note on their section on fire extinguishing - just about all aerospace fire extinguishing systems use agents with a fluorine based chemistry. Putting out a fire dissociates some of the agent, and in the presence of humidified air it recombines and forms hydroflouric acid, which will eat you from the inside out. So your air scrubbers had best do a good job at removing acid gasses.
https://www.researchgate.net/publication/280646417_Acid_gas_...
It doesn't really eat you though: HF is so small that the problem is it just traverses straight through the skin into your blood and causes fluoridosis.
There's been more then a few metallurgy lab deaths because someone spilled a substantial amount of HF on themselves and didn't realize it.