Baking Soda and Vinegar: Are there any secondary reactions?
It seems to me, according to the comments on the question, that there are NO additional reactions or products to worry about.

However, because of the foam, some of the original reactants can be tossed up, and find their way into the later parts of the apparatus as a haze/fog/cloud that is not completely inert.

Is that more-or-less accurate?  I'm trying to get an answer here, and not just a string of comments.