Effect of second hand fumes from vaping on young lungs Is Second Hand Vape Smoke Harmful Secondhand smoke and secondhand aerosol ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, Is Secondhand Vape Smoke Bad for You? Baton Rouge General Does Second Hand Smoke Kill? SiOWfa16: Science in Our World: Certainty and Controversy In secondhand vape, scientists smell risk American Heart Association