Earth Guard™ Mega Mop uses a unique Dust Magnet® Disposable Sheet that is over 50% larger than other brands of mopping system disposable sheets, making your cleaning time faster and easier. The long, dense flowing fibers of the Sheet picks up with an electrostatic charge and holds onto bacteria, dust, dirt, hair, crumbs, small particles - like a magnet. Dust Magnet Sheets are approved for hospital use and work great in homes, schools, doctor and dentist offices and more and will biodegrade naturally in the environment over a number of weeks... safe for you and the environment. Easy to use... just mop and dispose of Sheet when completely full of bacteria, dirt and debris. Safe to use on any hard surface floor.