Tobacco Smoke, Vaping, and Asthma AAFA.org 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, Secondhand smoke from vaping could be harmful to children: study ABC13 Houston What Are the Risks from Secondhand Vape Smoke? NVB Inc. Secondhand vape plumes could form lung damaging radicals American Chemical Society According to the American Heart Association, the risks of secondhand smoke from vapes are still being discovered. Learn about the dangers of secondhand smoke from vapes.