The subject of terminology: vape, e-cigarette, ends sits at the intersection of technology, tobacco policy, consumer behavior, and health research in the United States. E-cigarettes are electronic devices that typically deliver nicotine, flavorings, and other ingredients through an inhaled aerosol. They are also described as vapes, vape pens, electronic nicotine delivery systems, or ENDS. Unlike conventional cigarettes, they do not burn tobacco to create smoke. Devices vary substantially in design, including disposable products, cartridge or pod systems, and refillable systems. This variety makes the category broader than any single product shape or brand. In the U.S., e-cigarettes are regulated as tobacco products when they meet the statutory definition, and the regulatory framework covers manufacturing, marketing, and retail sales. The U.S. debate therefore involves both the potential effects on adults who use tobacco and the need to prevent nicotine initiation among young people.
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