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ProTura Nanofiber Technology

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Oval Cartridge Filters

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Oval Replacement Cartridge Filters

for Donaldson Torit® Downflo® Oval (DFO) Dust Collectors

Our oval replacement cartridge filters provide superior filtration due to our advanced proprietary 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.

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 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 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.

To order filters, Find A Rep Near You or call UAS direct at 1-888-515-8800.

Filter Media*	Unique Characteristics	Typical Applications
ProTura Nanofiber	Suitable for most applications. This is the standard filter that is included in all base units. Maximum Temperature: 180° F Washable: No	Abrasive blasting Carbon black Dry chemical processing Pharmaceuticals Powder paints
ProTura Nanofiber, Fire Retardant	For applications where live sparks could enter the dust collector. Will not suppress fires if collected materials are combustible. Maximum Temperature: 180° F Washable: No	Ferrous metal grinding Flame cutting Laser cutting Metal spraying Plasma cutting Welding
ProTura Nanofiber, Wide Pleat	For applications where large or irregularly shaped particles may enter the dust collector. Maximum Temperature: 180° F Washable: No	Buffing Composites griding Fiberglass griding Grain handling Leather finishing Tobacco processing Wood sanding
ProTura Nanofiber, Fire Retardant, Wide Pleat	For applications where larger particles and live sparks may enter the dust collector. Maximum Temperature: 180° F Washable: No	Coarse grinding of ferrous metals
Poly-Glass	For applications with larger particles or with hygroscopic or agglomerative dusts. Filters can be washed and reused. Maximum Temperature: 180° F (High temperature version to 275° F is available) Washable: Yes	Coffee Cocoa Detergents Milk powder Salt Sugar Stearates Textiles
100% Spunbond Polyester	For applications where high-strength media and excellent release characteristics are necessary. Maximum Temperature: 180° F (High temperature version to 275° F is available) Washable: Yes	Cardboard Cement Paper Rubber grinding
100% Spunbond Polyester with PTFE membrane	For applications demanding ultra-high filtration efficiencies or difficult dust cake release requirements. Spunbond PTFE filter cartridges use a PFTE membrane to repel moisture while allowing air and moisture vapor to pass through the membrane's extremely small spaces. Maximum Temperature: 180° F (High temperature version to 275° F is available)) Washable: Yes	Agglomerating materials Asbestos Fluidized bed dryers Food Pesticides

*Other media or custom pleat spacing is available to meet the specific needs of any application. All blends are high-efficiency and proprietary.

Oval Replacement Cartridge Filters

for Donaldson Torit® Downflo® Oval (DFO) Dust Collectors

Filter Media*

Unique Characteristics

Typical Applications