First, Second and Thirdhand Smoke: The Differences and Dangers Tobacco Stops With Me 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 Is a Risk for Pregnant and Breastfeeding Moms The Wellness Coalition Safety for Vaping Around Pets Bayside Animal Hospital Bayside Animal Hospital Is Second Hand Vape Harmful Children At Risk: Emory Study Uncovers The Hidden Dangers Of Secondhand Vape Exposure Second Hand Vaping Vs Smoking