Is Secondhand Vaping Harmful To Your Health? Tobacco Smoke, Vaping, and Asthma AAFA.org Experts urge parents not to vape near kids as study finds second hand vapor causes build up of chemicals linked to CANCER Daily Mail Online Is 2% nicotine a lot? Understanding nicotine strengths Evapo Secondhand Smoke vs Vape: What the Science Says Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center