I too, doubt that there will be much of a problem. The idea of photographic chemistry being intensely irritating is far overblown. The only chemical I use that seems to be noticeable at all is glacial acetic acid (diluted for stop bath), and that is as intense as common table vinegar - diluted at that.Originally Posted by jrong
I can't even notice any "fumes" from Color Kit chemicals.
All that said, there is still the possibility of individual hypersensitivity. It is possible that someone could react unfavorably to any chemical - even white vinegar diluted 1:1 with water. Not likely, but possible.