I recommend making the inner fibers more rigid. As is the case with a number of reviewers, with use, the innermost fibers fold inward, largely clogging the suction and particulate matter. I decided to paint the innermost fibers using an old toothbrush with the bristle tips dipped in some paint and apply the paint to these innermost fibers, starting at the bottom near the plastic body, in a slight swirling motion outwards, dipping and over the entire area continued. the inner loop of the suction