Is Second Hand Vape Smoke Harmful Reddit Disposable vapes release more toxic elements than tobacco smoke 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 How safe is vaping? UCLA Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London How secondhand smoke, thirdhand smoke & vaping affects kids Is Second Hand Vapor from E Cigarettes Dangerous? [Infographic] The Local Brand