Filtration Soil
Filtration Soiling / Draft Marking (Carpet)
Floor Detective® Defect Guide
What You Need to Know
Filtration soiling, also referred to as draft marking (sometimes spelled draught marking), appears as linear dark discoloration patterns in carpeted areas
The condition is most commonly observed along perimeter walls, beneath baseboards, at step edges, under furniture skirting and draperies, around floor registers, and beneath
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