Can You Get Secondhand Smoke From a Vape or E Cigarette? Secondhand Exposure to E Cigarettes Puts COPD Patients At Risk Respiratory Therapy Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice