HNB stands for "Heated Tobacco Product." It refers to a type of smoking device that heats tobacco to produce an inhalable aerosol without burning it. HNB devices are designed to provide a smoking experience similar to traditional cigarettes, but with reduced exposure to harmful substances produced by combustion.

These devices typically consist of three main components: a tobacco stick or cartridge, a heating element, and a battery. The tobacco stick contains processed tobacco, which is heated by the device to release nicotine and flavorings. The heating element ensures that the tobacco is heated to a specific temperature that is below the combustion point, preventing the release of toxins and harmful chemicals associated with burning tobacco.

HNB products have gained popularity as an alternative to traditional cigarettes, as they are believed to emit lower levels of harmful chemicals and have potentially reduced health risks compared to conventional smoking. However, it is important to note that the long-term effects of using HNB devices are still under study, and they are not risk-free. Additionally, HNB products may still contain nicotine, which can be addictive.

Overall, HNB, or Heated Tobacco Product, refers to a smoking device that heats tobacco without burning it, aiming to provide a tobacco inhalation experience with reduced exposure to harmful substances found in traditional cigarettes.