Hazmat vest grant your soldiers immunity to poison, but does that also apply to the special poison that Chryssalids use?

I know you can cure Chryssalid poison with a Medkit (just like normal poison), but I wasn't sure if it worked the same way for Hazmat vests.

  • Hazmat suit? Is that an armor utility item?
    – DCShannon
    Commented Feb 13, 2016 at 5:49
  • 1
    @DCShannon yes.
    – DarthPizza
    Commented Feb 13, 2016 at 6:20
  • What's different about the chryssalid poison that makes you think it won't work?
    – DCShannon
    Commented Feb 16, 2016 at 14:23
  • 1
    @DCShannon the fact that it has a special name, I don't know.
    – DarthPizza
    Commented Feb 16, 2016 at 22:59

2 Answers 2


From the source files provided with the mod tools, Chryssalid attacks inflict a 'ParthenogenicPoison' effect, one feature of which is dealing poison damage over time.

Hazmat vests provide both immunity to poison damage and a separate explicit immunity to the ParthenogenicPoison, so they will protect you against Chryssalid poison*.

*Or, at least, they're intended to: I'm not 100% sure that there are no bugs that might affect this (though I have checked that the Hazmat-vests-don't-block-acid bug doesn't affect it).

  • Related: I confirmed that medkits remove Chryssalid poison this morning on two different soldiers.
    – DCShannon
    Commented Feb 26, 2016 at 0:46

Hazmat suits should only protect you against fire, gas and acid according to their description, but there currently seems to be a bug where the acid immunity doesn't actually work.

Given how the item description doesn't mention Chryssalid poison, it seems highly unlikely that it gives you immunity.

  • 1
    The description says "fire, acid or poison", not gas. Doesn't gas inflict poison damage? Since it says poison, I would expect it to defend against poison.
    – DCShannon
    Commented Feb 16, 2016 at 14:22

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