E Cigarettes Vaping with Juul & Other Electronic Cigarettes Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center More cancer causing chemicals found in electronic cigarettes The Verge 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 What's really inside a vape? Many people think vaping is just flavored vapor, but the aerosol from e cigarettes can contain harmful substances that go straight into the lungs. According to the