Hidden Dangers of Secondhand Vaping Emory Health Digest 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. Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Vaping University Hospitals Amazon.com: NICOTESTS Nicotine Second Hand Smoke and Vape 10 ng Test (5 Pack) : Health & Household