Is Second Hand Vape Smoke Harmful Secondhand smoke and secondhand aerosol Have you ever breathed in secondhand vapor from a vape? What exactly are you inhaling? It turns out it's a lengthy list of chemicals. FULL STORY Symptoms Of Second hand Vape Smoke Debunking 7 Myths About Secondhand Smoke Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM Thirdhand Smoke Resource Center Protecting Californians Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA