Downflo® Oval Provides Higher Airflow with a Small Footprint on Concrete Dust Two Donaldson® Torit® Downflo® Oval (DFO) dust collectors have a small footprint and yet are sized for the high airflow needed for eight concrete color holding tanks. When Butterfield Color, a maker of decorative concrete color additives, stains, and sealers needed to expand, they remodeled an older manufacturing facility. Dust collection with increased airflow and filtration capacity to capture the clouds of dust rising from eight color holding tanks was a necessary improvement. Butterfield needed a dust collection system that could handle particle sizes ranging from 10 to 500 microns. They chose two Donaldson® Torit® Downflo® Oval (DFO) self-cleaning cartridge dust collectors each containing eight Ultra-Web ?®

Join for free to read