Breathing in someone else's smoke or vape isn't harmless. Secondhand smoke exposure can affect your lungs, brain, and overall health. Protect your families and yourself. Inhalar el humo o el vapor de The risks of vape pens' secondhand aerosols Is Second Hand Vapor from E Cigarettes Dangerous? [Infographic] Techno FAQ ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA