Word search #12406 - I am black when clean and white when dirty. ...

I am black when clean and white when dirty. What am I? ...(solution)

ANTCCTBUODY
PISTATUTEAH
AAIAMLKPRCF
RHTNENOPMOC
LCNLLSSBRRL
IAESIBSMNKA
ARDTACAOOSW
MBIAOLNLACY
EORRINAELRE
NNETABUMPER
TDYCRENNIWT
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