are njoys made of metal?
For most brands (BluCig, NJOY King, Mistic, V2 Cigs, Luxury Lites, Smooth, Tsunami, and Imperial Hookah), the filament was comprised of nickel and chromium (Fig 7B and 7C, S4A Fig and Table 2). ... Vype and Starbuzz had iron, chromium, and nickel in the filament (Table 2).