what is the black stuff in cigarette filters

what is the black stuff in cigarette filters Something ate cotton on my cigarettes, I left them my truck overnight. : r/whatisthisthing Lark (cigarette) - Wikipedia

Name: what is the black stuff in cigarette filters Something ate cotton on my cigarettes, I left them my truck overnight. : r/whatisthisthing Lark (cigarette) - Wikipedia
Brand: aquadia.hu
SKU: 21673019556
Price: 29.12 USD
Availability: InStock
Rating: 4.3402 (11 reviews)

SKU: 21673019556

4.3

USD29.12 USD69.12

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Description

Mid-range pods and tanks: a bit more vapor

This product has earned 4.7 out of 5 stars across 654 reviews, with many noting how quickly musty smells disappeared from their closets, basements, and bathrooms

Baker, et al

Product tests on flow and vapor, gas, and sub-micron particle removal have been performed by Battelle Laboratories, one of the worlds most respected testing labs