Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Smoking and vaping are often compared, but neither is harmless. While they work differently, both can expose the lungs to addictive nicotine and harmful chemicals that impact breathing and overall health. Smoking Secondhand smoke and secondhand aerosol The Health Risks Of E Cigarettes Versus Traditional Cigarettes Henry Ford Health Detroit, MI Why Vaping is Dangerous, Especially for Children with Asthma The National Environmental Education Foundation (NEEF) Juul study shows secondhand vaping emissions are less toxic than cigarette smoke