is smoking weed as harmful as cigarettes Are There Risks From Secondhand Marijuana Smoke? Early Science Says Yes | KCUR Poll: Americans Think Smoking Pot

Despite this, vaping is not recommended for non-smokers

Hyland, the research team found that in a group of heavy smokers who initially had no plans to quit smoking, those who were vaping daily at the end of the study period were more likely to quit smoking than those who didnt vape at all (or only vaped occasionally)

UL 8139 Electrical Systems of Electronic Cigarettes and Vaping Devices UL 8139 contains requirements for the electrical systems (including their accessories, charging systems, components, and parts) of products, such as: E-cigarettes E-hookahs ENDS E-pipes E-shishas Hookah pens Vape pens Vaporizers The standards requirements do not apply to: E-liquids Other inhaled aerosol substances Substances in the resulting emissions UL 1642 Lithium Batteries UL 1642 covers requirements for the following types of lithium batteries: Primary (non-rechargeable) batteries Secondary (rechargeable) batteries Batteries meant for use in technician- or user-replaceable products The requirements in this standard aim to help reduce the risk of injury when disposing of the removed batteries, and cover user-replaceable lithium batteries containing a maximum of 0.13 oz of metallic lithium

But their presence has declined, and China-based companies have grown rapidly, from 5 models in the daily top 50 at the beginning of 2025 to 20 in May 2026