Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Secondhand smoke and secondhand aerosol Parents using e cigs expose kids to dangerous secondhand vapor Futurity Vaping: The Smoke Free Habit That Isnt Risk Free, PALS Community Magazine, So vapes. They smell like bubblegum, look like highlighters, and somehow cost more than a weeks groceries. But whats Secondhand smoke and secondhand aerosol