Thanks, that's fairly clear and concise, at least for the locations you noted. It does appear to be that in New York it might be required though[1], so it's po

Thanks, that's fairly clear and concise, at least for the locations you noted. It does appear to be that in New York it might be required though[1], so it's possibly still a problem depending on area. I'm not going to act like I'm an expert on reading building codes or that one in general though, so I could be misinterpreting it. SF had what clearly seemed like a mechanical ventilation exception in it when I just looked, but SF and Manhattan are the only things I looked up to compare to see if I could find whether it seemed fairly universally allowed or not. 1: https://up.codes/viewer/new_york_city/nyc-building-code-2022/chapter/12/interior-environment#1203.1 https://up.codes/viewer/new_york_city/nyc-building-code-2022... and https://up.codes/viewer/new_york_city/nyc-building-code-2022/chapter/12/interior-environment#1203.5.1.2.1 https://up.codes/viewer/new_york_city/nyc-building-code-2022...