Secondhand smoke from cigarettes worse than vapes UPI.com Effect of second hand fumes from vaping on young lungs What Does Vaping Do to Your Lungs? Johns Hopkins Medicine Vape Smoke 220w Risk From Second Hand Smoke On Children Greater Than Previously Thought Second Hand Smoking From Vaping 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.