E Cigarettes (Vapes) Smoking and Tobacco Use CDC We break down the key differences between traditional cigarettes and e cigarettescovering: 1 Their compositions and ingredients. 2 The health risks associated with both. 3 Nicotine levels and addiction potential. 4 The impact FDA permits the marketing of an e cigarette for the first time, paving the way for vaping products to be legally sold in the U.S. Roswell Park Comprehensive Cancer Center Buffalo, E Cigarettes Have No Benefit for COPD Patients Trying to Quit Smoking