Wiktionary
deduster
n. a piece of cleaning equipment used to separate dust or other fine particles from another material
Usage examples of "deduster".
I was sharing this one with her, which was awkward, because when you come in, you know, you have to throw it in the deduster, and it takes just hours to get most of the dust out, and if you don't, it wears out very quickly at the seals and seams.
I sure was glad I had obeyed her and put it in the deduster right after the last time I wore it.