Symptoms Of Second hand Vape Smoke Is Vape Harmful Is Secondhand Vape Smoke Bad For Pregnancy? 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 Vapes are commonly used as a way to stop smoking but it could have a huge unexpected risk Hidden Dangers of Secondhand Vaping Emory Health Digest