Secondhand cigarette smoke is a combination of smoke from the burning end of a cigarette and the smoke breathed out by smokers. Exposure to secondhand smoke has been linked to cardiovascular disease, Can You Get Secondhand Smoke from Vaping? Understanding the Risks Vaping FAQs Dr Colin Mendelsohn Second Hand Vape Smoke Kids Fact Sheet: Secondhand Vape Aerosol and Kids Secondhand Smoke Social Media Message Library Tobacco Education Clearinghouse of California