black spots in cigarette filter Why do these cigarettes have a perforation on the filter? : r/whatisthisthing black dots in cigarette filter

black dots in cigarette filter What is this dotted line for on the filter? : r Cigarettes Alfred Dunhill The White Spot Products Today a black surprise for Jen I cleaned my filter This is the e first time I have such black spot on the filter Do you have any idea ? Brother sent me this photo, What type of mushies would be growing on the filters of cigs? : r mycology TIL that cigarette filters change color not because they are trapping part of the cigarette smoke, but because they are designed to change color to lead consumers to think that they are black dots in cigarette filter WTF is this black stuff in my cigarette filters? : r Whatisthis

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