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 Secondhand vape exposure detectable in children's saliva, breath Contemporary Pediatrics In secondhand vape, scientists smell risk Health cherokeephoenix.org Vaping and Electronic Cigarette (E Cigarette) Products Cattaraugus County Website Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA