Does cannabis create thirdhand smoke? Thirdhand Smoke Resource Center Secondhand Exposure to E Cigarettes Puts COPD Patients At Risk Respiratory Therapy The risks of vape pens' secondhand aerosols Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA According to the American Heart Association, the risks of secondhand smoke from vapes are still being discovered. Learn about the dangers of secondhand smoke from vapes.