An e-cigarette is a long tube that usually resembles a cigarette, a cigar, a pipe, or a pen. Most are reusable, with replaceable and refillable cartridges, but some are disposable.
The first patent for a "smokeless, non-tobacco cigarette" was requested by Herbert A. Gilbert in 1963, but the current device did not appear until 2003.
The e-cigarette as we know it was invented by Hon Lik, a Chinese pharmacist, working for Golden Dragon Holdings, now known as Ruyan. The company started exporting to major markets from 2005 to 2006. There are now over 460 different brands on the market.
Here are some key points about e-cigarettes below:
E-cigarettes aim to resemble cigarettes, but without burning tobacco.
They are sold as aids to reduce or quit smoking, and some people find them helpful for this.
However, research shows that they may have a negative impact on health.
Health authorities are trying to tighten up regulations to discourage young people from using e-cigarettes.
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