Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center E Cigarettes: Know the Health Risks Department of Health Vaping refers to the use of an electronic cigarette, or other vaping device, to breathe in an aerosol, often containing nicotine, flavouring and other chemicals. Unlike cigarette smoking, vaping doesn't burn tobacco. Vaping lung illness: Harmful chemicals found in e cig flavoring juice E Cigarettes Vaping with Juul & Other Electronic Cigarettes Composition of electronic cigarette aerosol Wikipedia