When our neighbor's garage was on fire, the smoke blew right at my chicken yard. I just turned them out into the yard and they found clear air. Not like your situation, but animals are great at surviving.
One other recommendation for emergencies. Cash. For years, we've tucked a dollar or 5 into the console of the car, thrown it in the kitchen junk drawer, that sort of thing. When we needed cash in a hurry (tornado knocked out power, needed cash to pay our way for gas, etc) we had over $500 in1's and 5's. It adds up and you don't really notice. I also put change in empty medicine bottles. They usually hold $10 in quarters. That adds up, too.
One other recommendation for emergencies. Cash. For years, we've tucked a dollar or 5 into the console of the car, thrown it in the kitchen junk drawer, that sort of thing. When we needed cash in a hurry (tornado knocked out power, needed cash to pay our way for gas, etc) we had over $500 in1's and 5's. It adds up and you don't really notice. I also put change in empty medicine bottles. They usually hold $10 in quarters. That adds up, too.