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, Smoking The Lullaby Trust E cigarette exposure on the rise in young children: 6 things parents should know Michigan Medicine Smoking, vaping & pregnancy: in pictures Raising Children Network Vaping Around Babies How Secondhand Vapor Smoke Can Harm Kids Why Vaping is Dangerous, Especially for Children with Asthma The National Environmental Education Foundation (NEEF)