In secondhand vape, scientists smell risk American Heart Association ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, First, Second and Thirdhand Smoke: The Differences and Dangers Tobacco Stops With Me What Are the Risks from Secondhand Vape Smoke? NVB Inc. The health risks of secondhand smoke are widely understood. But what about secondhand vaping?