O.FH.HEP2000 - Diversitech 24x24 HEPA After-Filter with Frame

High-Efficiency Filtration for Industrial Safety

The Diversitech O.FH.HEP2000 is a premium-grade HEPA (High-Efficiency Particulate Air) filter module designed specifically for industrial fume extraction applications. Measuring 24 inches by 24 inches, this unit integrates high-surface-area filter media within a robust frame, ensuring a perfect seal and structural integrity under the negative pressure conditions of heavy-duty extraction systems. This filter serves as a critical final stage in multi-stage filtration units, scrubbing the air of ultra-fine particulates that pass through pre-filters and primary cartridge filters.

Technically, this filter is rated to capture 99.97% of airborne particles as small as 0.3 microns. This level of efficiency is mandatory for facilities recirculating air back into the plant environment, particularly when processes involve hazardous materials. The media is constructed from dense glass fiber mats that trap sub-micron particles through interception, impaction, and diffusion mechanisms. The included frame is designed to fit standard Diversitech filter housings and compatible 24x24 tracks, minimizing bypass leakage—a common failure point in inferior filtration setups. By ensuring that 100% of the airflow passes through the media, the O.FH.HEP2000 guarantees the output air meets or exceeds OSHA and NIOSH standards for indoor air quality.

Maintenance personnel should note that HEPA filters function as depth-loading media for very fine particles and are not designed to be pulse-cleaned or washed. Attempting to clean a HEPA filter can damage the delicate fiber matrix and compromise its efficiency. This unit is designed as a disposable component, to be replaced when the pressure differential across the filter bank reaches the manufacturer's recommended limit. Regular replacement is vital to prevent back-pressure buildup, which can reduce the suction performance of the fume extractor and strain the blower motor. This specific SKU includes the necessary framing, simplifying the change-out process and ensuring the new media is properly supported.