Originally Posted by aznfamous
40–60 mg of nicotine is lethal to human adults.
True .... this means that a bowl of 50 grams of shisha (a large phunnel), 0.5% means 0.25 grams or 250 milligrams which is definitely lethal... and 0.05% is 25 milligrams which is more than half the lethal dose.
I believe there is another factor here, that tobacco is not burnt, just heated. So it might be that the tobacco transferred to ur system is much less than in the case of a cigarette, pipe or cigar.