Carpet Filtration Soiling Explained
According to the Carpet and Rug Institute, filtration soiling is a phrase used to explain dark, grayish lines that can appear because of airborne pollutants – dust, smog, cleaning agents, etc. – accumulating on the fibers of the carpet in areas where there is limited air flow.
While a few could have you think otherwise, filtration soiling isn’t dependent on the overall quality of carpet selected, as even the highest quality carpet can become afflicted from this type of soiling. Filtration soiling, however, will be more noticeable on lighter colorations of carpet as opposed to on darker colors.
Where does it occur?
As mentioned previously, filtration soiling mostly occurs in areas where there is limited air-flow including around baseboards, under doors, down the edges of stairs and under some furnishings in addition to prevent walls where plywood sub-flooring materials could have been joined.
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