Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center Vaping: A 30 Second High Don't Forget the Bubbles Passive smoking (secondhand smoke) is extremely harmful to children, especially infants. Because infants breathe faster than adults, they inhale more smoke toxins per minute. This exposes them to dangerous chemicals like nicotine,