Secondhand Smoke vs Vape: What the Science Says Do Vapes Have Second Hand Smoke Do electronic cigarettes create thirdhand chemical residue? 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 Evidence Mounts About the Health Impact of Second Hand Vaping Bisnar Chase Study suggests switching from smoking to vaping indoors may reduce children's secondhand exposure to nicotine Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA