Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC Which Smoking Habit Puts You Most at Risk? 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 Is Second Hand Vaping Safe? Here's What You Need to Know About Vapour and Health Risks Vape King Blog 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 It's Not Just Cigarettes: Vape Residue Sticks on Surfaces Too Thirdhand Smoke Resource Center