Electronic cigarette safety is knowing that this heats up and could get hot. You should never continuously drag or inhale the electronic cigarette because this will cause the electronic cigarettes atomizer to stay hot and potentially melt the cartridge. You should only take a drag when you feel the urge to smoke. Using the electronic cigarette sparingly is good electronic cigarette safety and will actually make your cartridges last longer. http://www.healthproductreviewers.com/electronic-cigarette-review.html