10002986 - Diversitech FRED Jr. Replacement Nanofiber Filter Cartridge

High-Efficiency Filtration for Industrial Environments

The Diversitech FRED-JR-26NF is a premium replacement filter cartridge engineered specifically for the FRED Jr. line of portable fume extractors. In the realm of industrial air quality control, the filtration media is the critical component that dictates system performance, energy efficiency, and worker safety. This cartridge utilizes advanced Nanofiber technology, which represents a significant leap forward from traditional cellulose or spun-bond polyester media. The nanofiber layer consists of an ultra-fine mesh applied to the substrate, creating a microscopic web that captures sub-micron particles on the surface of the filter.

This surface-loading characteristic is the defining technical advantage of the FRED-JR-26NF. In welding applications, particulate matter is often extremely fine (less than 1 micron) and can easily penetrate deep into the pores of standard depth-loading filters, causing irreversible clogging and a rapid increase in pressure drop. By capturing these particles on the surface, the nanofiber media allows the extractor's reverse-pulse cleaning system to function at peak efficiency. When the cleaning cycle activates, the compressed air pulse effectively dislodges the dust cake from the surface, restoring airflow and maintaining optimal suction velocity at the hood.

With a substantial 320 square feet of media surface area, this cartridge ensures a low air-to-cloth ratio. This design parameter is crucial for minimizing the mechanical stress on the filter media and reducing the energy load on the fan motor. The result is a filter that not only captures hazardous contaminants like hexavalent chromium, manganese, and zinc oxide with MERV 15 efficiency but also lasts significantly longer than standard alternatives. For facility managers and safety officers, this translates to reduced downtime for maintenance, lower consumable costs over the fiscal year, and assured compliance with OSHA PELs for welding fumes.

The cartridge is constructed with heavy-duty end caps and a robust inner core to withstand the pressure differentials and mechanical vibrations inherent in industrial environments. It is designed for a precise fit within the FRED Jr. housing, ensuring a perfect seal and preventing any bypass of contaminated air. Whether used for MIG, TIG, Stick welding, or grinding operations, the FRED-JR-26NF provides the reliability and performance necessary for critical air filtration applications.