The mouthpiece is the only interface for the user unless there happens to be USB-C charging port or a battery/e-liquid life indicator
Hossain MS, Karuniawati H, Jairoun AA, Urbi Z, Ooi DJ, John A, et al
Many smoking filters do not fully biodegrade in normal outdoor conditions, especially if they contain plastic parts
Total sales of alcohol fell 8 per cent, compared to a steady 3 per cent fall in previous years, just under half of which was attributable to the smoking ban, according to Neilson
Regarding genotoxicity, in vitro work performed by Yu and colleagues using a laryngeal cancer cell line (HN30 and UMSCC10B) exposed to e-cigarette extract showed increased comet tail length and H2A.x (95), indicative of increased DNA damage, and in particular, double-stranded breaks