While early research suggests it may not be as dangerous as secondhand smoking, it's still not harmless, experts say. https: www.wate.com news does vaping cause secondhand smoke doctors explain the side effects ?utm_medium=social&utm_source The Effects Of Secondhand Smoke Tear Pad Health Edco Avoiding Tobacco Smoke and E Cigarette Aerosol Is a Key Part of Asthma Management Asthma and Allergy Foundation of America Secondhand Exposure to E Cigarettes Puts COPD Patients At Risk Respiratory Therapy