The health risks of secondhand smoke are widely understood. But what about secondhand vaping? Symptoms Of Second hand Vape Smoke Second hand Vaping Vs Smoking Can You Get Second Hand E Cigs and Second Hand Vaping: Dangers and Protections Secondhand vape plumes could form lung damaging radicals American Chemical Society Study suggests switching from smoking to vaping indoors may reduce children's secondhand exposure to nicotine Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA