Mops Plus EarthKleen&trade Dust Mops are an effective way to maintain and clean hardwood floors and other hard surface floors. Our EarthKleen&trade dust mops are made from 100% recycled PET plastic bottles and post consumer rayon/polyester. Reusable dust mops are a green way to clean since they're made to be laundered dozens of times. Reusing dust mops is much more environmentally friendly than buying cheap disposable dust mops and throwing them out after a few uses. Besides disposable dust mops don't work very well, anyway.