Four years ago I had the worst "allergy" attack I've ever experienced. I went to the doctors, got shots, pills, etc. In the late evening I could hardly breath. Then one beautifull, clear day while hacking my lungs out at the flying field, a fellow modeler said, "you're allergic to CA glues!!" Huh?? I quit using the glue, and quess what? No more prblems. Turns out, that more people are allergic to these glues, and don't suspect it. Of course the simple answer is to use the oderless ca's. Not really. There is a masking agent added to it that hides the oder, and I still had the same problems. Of course you don't hear to much about it from the industry, although I suspect those that distribute these products are well aware of it. This is why I build ARF's. Limited gluing in plenty of fresh air, makes me a very happy camper...........