The Associated Press reported in June that the number of unique e-cigarettes on the market has tripled to over 9,000 since 2020, a surge driven almost entirely by Chinese-manufactured disposables
Its modern blends offer a smoother profile than older versions, making it popular among mature smokers who appreciate tradition but want a cleaner finish
That means the only vapour that can be breathed in by someone else is the excess vapour
The 2ml limit reduces nicotine overconsumption, limits exposure in accidental contact, and ensures product safety
It signals a specific intended experience, often contrasted with full variants
Wilson Office of Naval Research, Boston Proceedings of the NATIONAL ACADEMY OF SCIENCES Volume 52, Number 2, August 15, 1964 Pearl did not state his definition of heavy smokers, nor specify what they smoked