You should check this article out (if you smoke cigarette, or someone of you do smoke) – https://www.universal-sci.com/headlines/2017/10/19/filters-a-cigarette-engineering-hoax-that-harms-both-smokers-and-the-environment

We must not mislead Australians about a “safer” cigarette. There isn’t one. But without filters, the number of lethal lung cancers may be reduced, more smokers would quit because of the harsh taste, and fewer young people would start smoking.

Anyway, how many people really concern about this?