E-cigarettes are electronic devices that stimulate the experience of smoking. They operate by heating a liquid
that produces an aerosol, which is inhaled by the user. The aerosol vapor contains nicotine, flavorings, and
other chemicals. The liquid used in E-cigarettes to produce aerosol is known as e-liquid.
Snus is a form of smokeless tobacco that undergoes a special manufacturing process. Snus is steampasteurized,
unlike dipping tobacco which is fire-cured. Swedish food regulations, which apply to the
manufacturing of snus, limit the permitted amounts of certain components in snus products.