Secondhand smoke comes from more than just cigarettes. From vapes to cannabis to hookah, secondhand smoke from all products can expose people to harmful chemicals and pollutants. In this blog, Onjewel Smith Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA Can I be Affected by Secondhand Vape Smoke?