Norwex #microfiber is 1/200th the size of a human hair and can hold up to 7 times its weight in matter. As you wipe the surface, the microﬁbers attract and draw up even the smallest particles of dust, trapping them in the ﬁbers. Norwex Microﬁber, when used wet, lifts particles up into the cloth and away from the surface. Once inside the cloth, the micro silver in the cloth goes to work with self-puriﬁcation properties against mold, fungi and bacterial odor within 24 hours.