Tobacco & Vapes Drug Free CC E Cigarettes (Vapes) Smoking and Tobacco Use CDC What You Need To Know About Vaping Full article: Toxicological assessment of electronic cigarette vaping: an emerging threat to force health, readiness and resilience in the U.S. Army Vaping is the act of inhaling a heated, aerosolized substance. It is critical to distinguish vaping from smoking. Smoking is the inhalation of a burned substance. The main difference between the two