Our oval replacement cartridge filters provide superior filtration due to our advanced proprietary BHA® ProTura® Nanofiber filtration technology. This technology is scientifically proven to achieve: higher efficiency, cleaner air, lower pressure drop, longer filter life, and greater energy savings than any other media used in cartridge filters.
BHA ProTura Nanofiber acts as a shield to prevent submicron particles from entering and becoming embedded within the filter's substrate media. As a result, pressure does not build up as rapidly and power requirements are dramatically reduced leading to operational savings.
Independent lab testing has certified our BHA ProTura Nanofiber filters at MERV 15 efficiency, which means they are up to 95% efficient on 0.3 and 1.0 micron size dust. Additional benefits from this superior filtration technology include improved dust cake release and filter life that meets or exceeds competitive oval cartridges more cost effectively.
We offer multiple media configurations to meet all your oval replacement filter needs for the Donaldson Torit® Downflo® Oval (DFO) dust collector in addition to the BHA ProTura Nanofiber, which comes in fire retardant and wide pleat versions. Other filter media options include 100% poly-glass, spunbond polyester and spunbond polyester with PTFE that repels moisture. See the chart below for reference.