Or you know, what has always happened in the past, and seems to work just fine.. super bright flashing light. Every school/govt building I've ever been that has fire alarms has these installed.
But you still breathe. You can still smell.
Not if you have a cold.
I know that, in my experience, pungent smells have an interesting way of making it through some of the sickest olfactory sense.
The problem with smell is, it takes a while to get dispersed, I'd probably smell the smoke about the same time as the wasabi. doh. I'm definitely wary of smelling smoke, it gets my notice for sure.