Risks of Vaping Around Babies: What Parents Should Know In Maine, it is illegal to smoke or vape when a child is in the vehicle with you. Keep your loved ones safe from the harms of secondhand smoke and vape aerosol 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, Secondhand smoke and secondhand aerosol Children to be better protected from second hand smoking and vaping GOV.UK