Featured Accessory: P4 Pellet Boiler Dust Cyclone By Travis PaigeJanuary 27, 2011January 11, 2022Fröling P4, Products We have been using Froling’s Pellet cyclone (deduster) for a week now with very effective results. See the photos below: We are recommending the deduster cyclone to be considered for all commercial jobs or for systems with issues with pellet dust.