A dry mop or dust mop is designed to pick up dry, loose contamination such as dust, earth, and sand from the surface of the floor. It consists of yarn and/or microfiber and can be used as a first step in cleaning a floor.Professional dry mops consist of a flat sheet of microfiber textile or sheets with a surface of looped yarn, usually about 15 cm (6 in) wide, and comes in variable lengths (usually 30100 cm (1239 in)).The dry mop can in many instances replace a broom and has the ability to hold a limited amount of dust or sand within itself. The heads of dry mops are often removable and can be washed and replaced when saturated with dust. Another option is using a vacuum cleaner to suck surface dust away from the mop; however, this is much more limited in its effectiveness.