Does cannabis create thirdhand smoke? Thirdhand Smoke Resource Center Health experts say not to 'vape' around children, because the secondhand aerosol (it isn't vapor) from e cigs isn't safe for them Kentucky Health News 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 Secondhand smoke and secondhand aerosol How can I protect my child from thirdhand smoke in homes? Thirdhand Smoke Resource Center