How could krypton affect people?

Could krypton (element) kill someone? What could it do to someone. Just out of random curiosity
Answer #1
Wikipedia says nothing about krypton being dangerous…
But I have no idea.
Answer #2
I believe krypton is an inert gas
http://www.chemicalelements.com/elements/kr.html
only way to kill someone with it is to replace there oxygen with it
Answer #3
Be careful, Superman