Same with anything that you can physical smell through the air. Some of it does get airborne. There has even been studies done on the effects of cigarette smoke and water quality! With your case though, I'd play it safe and simply throw a cheap plastic drop cloth over it. They only cost less than $2 at walmart and that way you can be sure. Either that, or just make sure you run some fresh activated carbon in the filter.
I wouldn't worry about anything though, no.
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