When someone vapes around others they expose them to 'second hand aerosol'. But what happens to that aerosol then? Does it disappear or is it like cigarette smoke and stays around, sticking to Does Vaping Cause Second Hand Smoke V2 Cigs UK How secondhand smoke, thirdhand smoke & vaping affects kids Frequently Asked Questions Thirdhand Smoke Resource Center Debunking 7 Myths About Secondhand Smoke According to the American Heart Association, the risks of secondhand smoke from vapes are still being discovered. Learn about the dangers of secondhand smoke from vapes.