A floor duster is commonly used to get rid of any debris that a broom is unable to get. This cleaning tool is very similar to a mop in the way that it cleans and is generally used on hardwood or tile floors.
When you are mopping and you already have a bunch of dirt and dust that has been collected on the head, it is important that you remove it before you start cleaning again. The dirt and dust can be like sandpaper to your hardwood floors that is why it is recommended that you get a mop that has a removable head or is made of microfiber for simple cleaning.