Vape Residue May Harm Unborn Babies' Immune Systems Respiratory Therapy Vaping in Pregnancy How safe is it? Can you continue smoking cigarettes if vaping? Is vaping safe for breastfeeding? Scroll to have your questions answered If you would like Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice Early life secondhand smoke exposure assessed by hair nicotine biomarker may reduce children's neurodevelopment at 2 years of age ScienceDirect Tobacco Smoke, Vaping, and Asthma AAFA.org