![]() ![]() ![]() ![]() This type of smoke has higher concentrations of nicotine and cancer-causing agents (carcinogens) than mainstream smoke. Sidestream smoke: Smoke from the lighted end of a cigarette, pipe, or cigar, or tobacco burning in a hookah.Mainstream smoke: The smoke exhaled by a person who smokes.It’s a mixture of 2 forms of smoke that come from burning tobacco: Secondhand smoke (SHS) is also called environmental tobacco smoke (ETS).
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