What is secondhand smoke: All about secondhand smoke that you should know Evidence Mounts About the Health Impact of Second Hand Vaping Bisnar Chase The health risks of secondhand smoke are widely understood. But what about secondhand vaping? 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 Secondhand Smoke Is a Risk for Pregnant and Breastfeeding Moms The Wellness Coalition Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA