E-cigarette Safety: There's nothing to light and nothing to shield, with e-cigarettes. Because they run on batteries and really don't burn anything, there is no ash and no risk of fire! No need to "put out" your e-cigarette. Enjoy smoking, even in bed - without worrying that you'll fall asleep while still smoking and accidentally begin a fire in your sheets, clothing, carpeting, drapes, the garbage, or the most recent Hunger Games novel.