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White cylindrical nanofiber cartridge filter with pleated media, model 300539

Miller Enterprises

Miller Enterprises 300539 Nanofiber Cartridge Filter for 4VDJ4

SKU CH-DEWS-3BC95

Nanofiber cartridge filter rated MERV 15 with 95 percent efficiency and 490 sq ft media area for Filtair MWX-D and SWX-D extractors

  • TypeWelding Supplies
  • MERV 15 rating captures fine weld-fume particles
  • 95 % filter efficiency protects workspace air quality
  • 490 sq ft media area extends service intervals
  • Surface-loading design simplifies cartridge replacement
  • Fits Filtair MWX-D and SWX-D extractors (Grainger 4VDJ4)

Miller Enterprises 300539 Nanofiber Cartridge Filter

The Miller Enterprises 300539 is a disposable nanofiber cartridge filter built for weld-fume extraction systems. It fits Filtair MWX-D and SWX-D units that carry manufacturer part numbers 300599, 951507, 951508, 951509, 951513, 951514, 951515 and 951619 as well as Grainger part number 4VDJ4.

490 sq ft filter area with MERV 15 rating

The cartridge provides 490 sq ft of filter area and a MERV 15 rating that captures fine weld particulates. Its surface-loading design keeps dust on the outside of the media so airflow stays steady longer, and the 95 percent efficiency rating confirms strong particle capture for typical shop volumes.

Cellulose nanofiber media for weld fume

The filter media is cellulose nanofiber engineered specifically for weld fume. It is not suited for oil mist, chemical vapours or high-temperature exhaust streams that require different media formulations.

Highlights

  • MERV 15 rating captures fine weld-fume particles
  • 95 % filter efficiency protects workspace air quality
  • 490 sq ft media area extends service intervals
  • Surface-loading design simplifies cartridge replacement
  • Fits Filtair MWX-D and SWX-D extractors (Grainger 4VDJ4)

Specifications

BrandMILLER ELECTRIC
TypeWelding Supplies

Questions about this item

Will the 300539 Nanofiber Cartridge Filter fit the Filtair MWX-D extractor I already own?

Yes, the 300539 filter is compatible with the Filtair MWX-D and SWX-D series extractors including manufacturer part numbers 300599, 951507, 951508, 951509, 951513, 951514, 951515 and 951619.

How can I verify the 300539 filter is performing at its rated 95 percent efficiency after installation?

Monitor the extractor's pressure gauge or airflow indicator; a stable reading within the manufacturer's specified range confirms the MERV 15 filter is capturing weld fume effectively with its surface-loading nanofiber media.

Does the 300539 Nanofiber Cartridge Filter include any mounting hardware or seals, or must I purchase them separately?

The 300539 is a disposable cartridge filter only; mounting hardware and seals are part of the Filtair extractor itself and are not included with the replacement filter.

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