Re: Second Hand Hookah
Scoop I was about to say that.
Simply, with cigarettes you burn the tobacco, along with the paper it is wrapped in, plus many additives (some sources say it includes pesticides).
With hookah, tobacco is heated, and to a reasonable degree (around 100 C/212 F), water - especially when room temperature or colder - is useful in catching heavy minerals and let them sediment in the water.
So in other words, I believe its second hand smoke is much less harmful