This week I am taking a break from my Romulan creations and working on a First Contact mission for Feds. The alien race lives in a lower Oxygen atmosphere than we are used to. Some time ago I played a Foundry mission that required an EVA suit. If you didn't wear one you died. I want it to be that if you don't wear a rebreather or an EVA suit while visiting the alien race you have periods of light headed swaying like you do when you are in the Elachi atmosphere. How can this be done? Or can it even be done?