Activated carbon is commonly used in cigarette filters due to its ability to adsorb certain organic compounds, thereby reducing the amount of harmful substances that a smoker inhales. 

 

When smoke passes through the filter containing activated carbon, harmful compounds such as phenols, some heavy polycyclic aromatic hydrocarbons, and certain volatile organic compounds are adsorbed onto the surface of the activated carbon. This reduces the toxicity of the smoke.

 

Activated carbon enhances the filtration properties of the cigarette filter. It can help to reduce the overall particulate matter that is inhaled by the smoker.

 

Some manufacturers claim that the use of activated carbon in cigarette filters can modify the flavor of the cigarette, potentially enhancing the smoking experience.

 

However, it’s important to note that while activated carbon filters can reduce the levels of certain harmful compounds in cigarette smoke, they do not make cigarettes safe or healthy. Smoking remains a major cause of serious health conditions, such as lung cancer and heart disease.