What You Need to Know About E Cigarettes and Vaping NYC Health + Hospitals How are Non Combusted Cigarettes, Sometimes Called Heat Not Burn Products, Different from E Cigarettes and Cigarettes? FDA Experts hazy on smokeless smokes' risks The Seattle Times Vaping is the act of inhaling a heated, aerosolized substance. It is critical to distinguish vaping from smoking. Smoking is the inhalation of a burned substance. The main difference between the two