Sub-Ohm's have been around ever since the original electronic cigarette and as such their use is not new. However it seems that the recent explosion in popularity of Sub-Ohms has made them more popular than ever before. Sub-Ohms are a unique device that works by allowing nicotine to pass through the middle section of the tank into the liquids surrounding the coil. Because of this ability Nicotine is able to enter the body more readily and thus it is generally preferred over Nicotine Gum or Lozenges. This can be great news for non-smokers and even for ex-smokers who are desperate for a substitute! The sub-ohm phenomenon is also why some people consider the replacement of traditional cigarettes with Sub-Ohms, because they are a less harmful alternative to smoking and deliver more of the nicotine into the body.