Nothing wrong with just a pipe collector. But, I agree if your this concerned about the possible effects of smoking it is probably not for you.
It's a pesticide, of course it's going to sound nasty, but you'll also know that most people smoke tobacco specifically because it contains a nasty insecticide, and we're a long way from fully understanding that.1) While pipe tobacco doesn’t have any of the utter rubbish that is cigarette “tobacco”, it is treated with pesticides in the field. Some of these pesticides are quite evil, and we don’t seem to understand how they behave under combustion