Is Second Hand Vaping Harmful? EDGE Vaping Secondhand vape plumes could form lung damaging radicals American Chemical Society Millions of people are exposed to secondhand smoke every day. People living in multi unit housing are some of the most exposed. The only way to fully protect people from secondhand smoke at Should I Be Concerned About Secondhand Vaping? Second Hand Smoke From Vape Tobacco Smoke, Vaping, and Asthma