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Brand a name like Elf Bar, Lost Mary or Geek Bar carries a premium over a no-name bar with the same specs

metal parts offer greater durability and a premium feel

Some vape pens use refillable tanks, while others utilize pre-filled cartridges

The best way to improve your health is to quit both smoking and vaping

The number of vape puffs equivalent to a cigarette depends on the e-liquid strength and device used

A single-cell transcriptomic study comparing primary bronchial epithelial cells obtained from donors with and without COPD found that exposure to menthol-flavored e-cigarette extract from 4 th -generation device caused hypoplasia of club cells and ciliated cells, and increased Notch signaling in both groups (112)