Dry, cyclonic separators disengage entrained dust from a carrying gas stream. They are often called cyclone collectors, multicyclones, cyclones, cyclonic separators, or cyclonic dust collectors.

Cyclone collectors are used for product recovery of dry dusts and powders and as primary collectors on high dust loading (more than 2 to 5 grs/dscf, or grains per dry standard cubic foot) air pollution control applications.