The first commercially successful electronic cigarette

In the summer of 2003, pharmacist Hon Lik was one of millions of smokers in China.

He was coughing a lot and having problems with his breathing and wondered if he could make an alternative cigarette.

After various experiments, he created a vape prototype. It went on sale in May 2004 and was instantly a hit - selling 100,000 in China.

Hon tells Megan Jones how he brought it to market.

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(Photo: Hon Lik smokes his invention. Credit: Frederic J Brown/AFP via Getty Images)