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Hang out with Generation Z-ers for long enough, and at some point you're bound to be engulfed by the vapor clouds of Puff Bars. The brightly colored sticks resemble USB flash drives, and unlike other e-cigarettes, leave only the faintest odor upon exhalation. The vapes deliver synthetic nicotine interspersed with flavors like "Blue Razz and "Cool Mint" that sound more like candy varieties than e-cigarette scents. 

Therein lies the problem, at least according to one state official. On Wednesday, North Carolina's attorney general announced he is concerned that the hip descriptions of Puff Bar flavors make them resembles products that could appeal to kids.