CI and Poison

Anyone able to help me with this?

So I'm looking to make a build with the Apep's Slumber Unique and I was curious if the self poison stacking would be possible or not as a CI build. I understand that CI makes you immune to chaos but does that mean that poisons wouldn't be stacked on me or just that they wouldn't damage me?

Any help would be appreciated!

This is my understanding. There are two terms in PoE that relate here. "Immune to" and "Unaffected by".

Immune to = You cannot have that status on you at all.
Unaffected by = You will still have the status, see the debuff icon etc but it will have no effect. Things that rely on you having the debuff will trigger (such as Apep's).

CI makes you immune to chaos damage. It does not make you immune to poison (like the Shakari pantheon).

Poison deals all chaos damage. What will happen (or should happen) is that you will actually be inflicted with poison which will do 0 damage. But since you are inflicted with poison, all Apep's abilities will trigger.

Hope that helps
~Myth

Thanks a lot buddy! Just wanted to make sure I wasn't wasting my time!