[He actually looks a bit cowed for a moment because...well.]

I mean I haven't thought of that yet? I'm not going back out without a real plan and until I make some upgrades on me and Baymax. But it's there, Rei. I have to try when I come up with a good plan. And I've got a helmet, maybe I can figure out an oxygen tank or something to help.

[Or he can be an air elemental and be totally fine. Whatever. He doesn't know that's going to benefit him.] It wasn't that bad out there until the last day when it was too cold to move. I could breathe just fine.