Protect Babies and Kids from Vaping Risks 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, Vaping may be causing irreversible harm to children's health, doctors say Vaping The Guardian Secondhand Smoke Is a Risk for Pregnant and Breastfeeding Moms The Wellness Coalition Secondhand smoke and secondhand aerosol Secondhand smoke may be a substantial contributor to lead levels found in children and adolescents, new study finds