[quote=Razboinic]
I am a little confused. Sorry if I missed something. Why do they wear hazmat suits if the dome has life support? Or is that just outside the dome that they wear hazmats?
[/quote]

We wear the gear outside of the domes, inside its all good you can around naked and not die. Another thing is generally it seems that the rest of us have packed food for extended trips outside, so just another thing to think about when getting equipment together.