black dots on cigarette filter I took my N30 apart to see what these were. What are they? Mold??? Dust? The new mask is completely white. They don't supply new filters for this mask ensuring exclusive black dots in cigarette filter

black dots in cigarette filter What is this dotted line for on the filter? : r Cigarettes Maximum yields might improve public healthif filter vents were banned: a lesson from the history of vented filters Tobacco Control black dots in cigarette filter WTF is this black stuff in my cigarette filters? : r Whatisthis black dots in cigarette filter What are these black seeds inside the cigarette filters? : r Cigarettes

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