ATL & Smoking

I have a biz trip to ATL on the horizon. As far as I can tell, all ATL clubs allow smoking. No offense to anyone but having to ingest 2nd hand smoke is a major negative for me.

1. Are there any 'good' ATL clubs that are non-smoking? (or recommendations for less bad?)

2. I've also seen some reviews that implying it may be common for illicit products to be smoked in ATL clubs. Can't risk testing positive at work due to 2nd hand exposure. Can any comment if such smoking is indeed common in ATL clubs?

Thanks.