Secondhand smoke and secondhand aerosol It's Not Just Cigarettes: Vape Residue Sticks on Surfaces Too Thirdhand Smoke Resource Center Is Second Hand Vape Harmful Children At Risk: Emory Study Uncovers The Hidden Dangers Of Secondhand Vape Exposure Second Hand Vaping Vs Smoking Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN