Is cigarette filter really useful?

Filtering is useful, but so far, smoking has become the number one enemy of human health. Among all kinds of causes of human death, smoking ranks first, among which cigarettes and filters are the culprit, which shows that the behavior of filters is still quite harmful.

It is understood that the filter of high-grade cigarettes generally uses cellulose acetate, while the middle and low-grade cigarettes with lower prices mostly use polyethylene. At the same time, some illegal cigarette factories will add binders and diluents to cigarette filters, which contain benzene, aromatic hydrocarbons and other substances harmful to human health.

Points for attention and key points of cigarette filter;

Doctors and pathologists have been puzzled by a strange phenomenon for a long time. That is, although the harmful components in cigars are more than 40 times higher than those in cigarettes, the incidence of lung cancer in cigar smokers is lower than that in smokers (of course, it is still much higher than that in non-smokers).

Later, they found that the smoke of pipes and cigars was too strong to be inhaled deeply into the lungs like cigarettes, but inhaled lightly and spit it out soon.

Refer to the above content: Baidu Encyclopedia-Filter cigarette holders