Is Secondhand Vape Smoke Bad For Pregnancy? Experts Explain The Risks In secondhand vape, scientists smell risk American Heart Association Sitting somewhere when a cloud of cotton candy vapor washes over you? If you can smell the sweet scent of a vape, that's not a great sign. Can I be Affected by Secondhand Vape Smoke? 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 Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals