As I understand it there was multiple "vaping" device invented a long time in advance of Ruyan ever mass created an e-cigarette, quite possibly the most famous 1 being the just one while in the patent pic underneath from Herbert Gilbert. You might recognize that “real” or non disposable vapes https://brookspngum.blogdon.net/the-5-second-trick-for-where-to-buy-vapes-online-under-18-51081867