Asthma and Allergy Foundation Tobacco can be bad for your health even if you are not the one smoking. Breathing in the smoke can lead to many health problems. Vaping is 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 Tobacco Smoke, Vaping, and Asthma AAFA.org Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA Second hand vape smoke linked to more asthma symptoms in kids