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 Vermont Department of Health Breathing in someone else's smoke or vape isn't harmless. Secondhand exposure can affect your lungs, brain, and overall health. Protect your families and yourself. Inhalar el humo o el vapor de otra 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.