First hand smoke comes from all combustible tobacco products. This includes Cigarettes, Cigars, Pipes, Hookah, and VAPES. This is the primary source of nicotine addiction. No amount of Second hand smoke is safe and E Cigarette Use Among Youth Smoking and Tobacco Use CDC Smoke without fire: Japan becomes test ground for real tobacco e cigarette Reuters Passive vaping time we see it like secondhand smoke and stand up for the right to clean air