Vape put into a baby's mouth uploaded to social media, infant then expires smoke 7NEWS YouTube Is Second Hand Vape Harmful Children At Risk: Emory Study Uncovers The Hidden Dangers Of Secondhand Vape Exposure Second Hand Vaping Vs Smoking Vaping Produces Far Less Second Hand Nicotine Than Smoking Respiratory Therapy Second hand smoke is highly toxic. Here's what happens when pregnant women and their babies are exposed to second hand smoke.