Secondhand Exposure to E Cigarettes Puts COPD Patients At Risk Respiratory Therapy Can You Get Second Hand Smoke From Vape Differing Opinions About Second Hand Vape Exposure The risks of vape pens' secondhand aerosols Early research says secondhand smoke from vaping may not be as bad as cigarettes, but it's still not harmless. https: fox59.com news national world does vaping cause secondhand smoke doctors explain the side effects Secondhand Smoke and Electronic Cigarette Aerosols US EPA