What is the material of cigarette filter?

Conventional cigarette filter material made of cellulose acetate is recognized as the most ideal filter material. However, some bad cigarette manufacturers use polypropylene instead of polypropylene (polypropylene: a plastic raw material) in order to reduce costs.

Polypropylene itself is non-toxic, but it is drawn into filaments after chemical and physical treatment, which looks the same as before, but many filaments invisible to the naked eye are sucked into your lungs when you smoke. You know, those tiny fibers can never come out of your alveoli again.

An article in the American Journal of Cancer Research points out that cigarette filters originally used to reduce tar intake are also potentially dangerous to human body: their tiny fibers will be inhaled into human body during smoking and stay in the lungs, thus causing harm to human body.

Extended data:

Principle of cigarette filter;

1, direct interception: tar droplets are directly separated from the smoke and attached to the filter surface when reaching the filter.

2. Inertial compaction: Low tar and nicotine volatilization levels can be achieved without the help of ventilation. It reduces the volatilization of carbon monoxide in cigarettes.

3. Diffusion precipitation: reduce smoke volatilization (including carbon monoxide), reduce cigarette pressure drop and remove filter fiber pressure.

References:

Baidu Encyclopedia-Filter Tips