The modern day evolved version of an invention patented by…
Herbert A. Gilbert in the 1960s
Herbert Gilbert realized how unhealthy it was to breath in burning paper and leaves so he decided to create something better. The vapor created by passing liquid over a heated element is much safer than smoke. Of course not smoking at all is better.
Studies have shown that the vapor from e-cigarettes contains between 9 to 450 times less harmful substances than real cigarette smoke.