Simply collect the fibers and dispose them of properly. It protects your apparel. Viewer fibers break compared to washing without the bag. Hence, it extents the lifetime of your favorite sweater. The microfibers that do get released are caught by the mesh and don’t make their way with the effluent into the marine ecosystem. It is an easy to use, uncomplicated, affordable and pragmatic solution to protect guppies, other sea dwellers and us.