Overview

• UC Davis researchers tested seven popular disposable vape models from ELF Bar, Flum Pebble and Esco Bar by simulating 500 to 1,500 puffs per device to measure metal output.
• Analysis traced lead contamination to leaded copper alloys in non-heating components and identified heating coils as a source of nickel and chromium leaching.
• One device released more lead in a single day’s use than nearly 20 packs of traditional cigarettes, and several devices emitted nickel and antimony levels above cancer risk limits.
• Despite lacking FDA marketing authorization, most disposable e-cigarettes remain widely available and are especially popular among adolescents and young adults.
• Authors call for urgent enforcement and tailored regulation to close loopholes and protect consumers from hidden toxic metal exposures.