Secondhand Exposure to E Cigarettes Puts COPD Patients At Risk Respiratory Therapy Juul study shows secondhand vaping emissions are less toxic than cigarette smoke What Are the Risks from Secondhand Vape Smoke? NVB Inc. Parents using e cigs expose kids to dangerous secondhand vapor Futurity Breathing in someone else's smoke or vape isn't harmless. Secondhand smoke exposure can affect your lungs, brain, and overall health. Protect your families and yourself. Inhalar el humo o el vapor de