Vaping Produces Far Less Second Hand Nicotine Than Smoking Respiratory Therapy According to the CDC, There are no safe tobacco products, including e cigarettes. E cigarettes should not be used by youth, young adults, or people who are pregnant. Adults who have never smoked or Increased e cigarette use prevalence is associated with decreased smoking prevalence among US adults Harm Reduction Journal Springer Nature Link A comparison of the major toxins and adverse health effects of smoking Download Scientific Diagram