In the United States, product concealability is an important part of the broader discussion about electronic cigarettes, nicotine, public health, and regulation. The U.S. e-cigarette market includes several broad product categories, such as disposable devices, prefilled or refillable pods or cartridges, and tank or mod systems. Product design has changed considerably over time, with manufacturers introducing different battery configurations, nicotine formulations, shapes, flavors, and delivery systems. These differences matter for research because a statistic describing one product category may not describe the entire market. CDC's 2024 youth data, for example, found disposable e-cigarettes were the most commonly reported device type among youth who currently used e-cigarettes. Product categories can also change quickly, creating challenges for surveillance and regulation. For that reason, national surveillance and regulatory information are useful when discussing the subject without overstating what the evidence proves.
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