Originally Posted by alanh
AFAIK, your job in the exit row is to open the exit if ordered to by a FA, or to open it on your own should the FAs be incapacitated. You could stand out on the wing and help people through the hatch, but I don't think you're obligated to.
I think that is the obligation for sitting in the exit row. Not to remain after you fulfill the initial door function.
You could bring along one of those respiratory masks made specifically for air travel if it makes you feel more comfortable. I don't and wouldn't.