Good luck. I also have asthma. Even if my chicks are in my basement, I am aware of it's affect on my breathing in my upstairs bedroom. I did put them down stairs for a week this time due to a difficult hatch and some chicks that needed some extra time to make the "save or cull" decision. But... generally, they get 24 - 48 hours to get settled after they come out of the incubator, then they go straight outside to be brooded with MHP. Getting a respirator mask is well worth it for your own safety... even if you don't have asthma.