In response to djw521 who said: "...the number of people who today say they are allergic to smoke seems to be significantly more than say 30 years ago... today it has become fashionable to complain. While I understand some may have real issues I must question the large numbers today that say they have an issue."

I believe many of us didn't realize how nice it was to be in a clean air enironment. As we are now around fewer and fewer smokers, and find more and more work and recreation spaces that are non-smoking areas, our noses naturally become more attuned (sensitive) to smoke.