Cigarettes, Smokeless Tobacco, and Vapes: Key Facts for Quitting and Staying Healthy Maryland Physicians Care Different types of e cigarettes from the first to fourth generation. Download Scientific Diagram 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 Les risques de la puff, la nouvelle cigarette lectronique jetable