Product Overview

  • Available in efficiency classes ≥ 99.95% and ≥ 99.995% for MPPS (H13 and H14 according to EN1822:2009)
  • Patent pending, polymer-based, dual-density, expanded polytetrafluoroethylene membranes - ePTFE 
  • Lowest pressure drop mini-pleat HEPA filter available
  • Anodised extruded aluminium frame
  • Gel, gasket or knife-edge seal available
  • TM Hood (terminal module) available
  • Thermoplastic hot-melt separators

Typical Applications

AAF International's ePTFE Technology - Today's Alternative to Fragile Microglass HEPA Filters

Designed specifically for the unique requirements and challenges of the pharmaceutical industry, the MEGAcel II mini-pleat HEPA filter has the proven durability, polyalphaolefin (PAO) compatibility, high particulate filtration efficiency, and the lowest pressure drop to meet the demands of pharmaceutical manufacturing. It is the best choice for the most demanding applications, saving both time and money while reducing contamination risk and invasive unscheduled downtime. With the lowest Total Cost of Ownership of all mini-pleat HEPA filters, the MEGAcel II will help protect your environment, reduce your business risk and optimise your clean air-related spending.

Proven Reliability With Exceptional Performance

  • MEGAcel II is designed to increase cleanroom uptime and reduce the risks associated with pharmaceutical manufacturing
  • Pharmaceutical-grade ePTFE media is proven to be more durable than microglass, delivering superior performance
  • Superior durability and tensile strength, 84 times the pleated strength of microglass
  • Chemical-resistant capabilities reduce media degradation in highly corrosive environments
  • Exceptional water resistance compared to ultrafine microglass
  • Extremely low off-gassing of chemical components, resulting in the highest quality clean air available
  • Lowest pressure drop mini-pleat HEPA filter available, reducing energy consumption for significant savings
  • MEGAcel II and ePTFE media are manufactured, tested and packaged in ISO 7 clean facilities to ensure the highest purity, quality, and consistency

Industry-Leading Durability

Independent tests have shown that MEGAcel II HEPA filters with ePTFE Media Technology have superior mechanical strength over filters with traditional ultrafine microglass media.

The superior mechanical strength is demonstrated by a high tensile strength, burst pressure and abrasion resistance. ePTFE Media Technology retains its integrity with a high resistance to any potential damage, such as mishaps in handling or installation. This means that the risk of filter media failure is minimised and that fibre shedding, which could cause contamination when entering the airstream, is eliminated. As a result, there is a decreased risk of contaminants entering cleanroom environments. Protection of sterile products and cleanroom personnel is optimised. Improvement in quality risk management systems of critical applications ensures a consistent supply of quality products and a reduction of failure rates.

Reduce Operational Risk

The pharmaceutical industry estimates that 77% of production downtime can be attributed to failures of equipment and environmental problems. This downtime can be caused by HEPA filters failing. Traditional HEPA filters typically fail due to some form of contact combined with the poor mechanical strength of the filter. The actions required when these failures occur include repairing/replacing the HEPA filter, certifying the repair or new installation, investigating a potentially contaminated product, and the generation of a risk assessment report. Effectively managing the risk and costs associated with successful operation requires utilising HEPA filters with dramatically higher tensile strength that are highly resistant to chemical degradation, thereby eliminating premature leaking and failure.

Increase Uptime

While FDA Testing Guidance requires critical room leak-testing certification twice a year, non-critical rooms require testing only once a year. With the extremely high tensile strength and durability of the ePTFE pleated filter media, which is 84 times stronger than microglass, ISO 7 and 8 areas could be tested annually. Increasing time between certifications results in less PAO exposure to the gel seal (gel degradation), lower labour costs, and increased production time.

MEGAcel II -Testing with Discrete Particle Counter

With AAF’s new ePTFE Media Technology, MEGAcel II filters can now be scan-tested with the industry standard photometer at the standard aerosol concentrations, as well as the low-aerosol concentration Discrete Particle Counter (DPC) method.

The MEGAcel II filter contains dual-density ePTFE Media Technology media specifically developed to retain equivalent amounts of aerosol with equivalent or lower pressure drop increases as ultrafine microglass. The dual-density ePTFE layers allow for the in-depth capture of progressively smaller solid particles.

Independent laboratory studies have shown that MEGAcel II filters with ePTFE Media Technology have superior PAO holding capacity over traditional ultrafine microglass HEPA media, as seen in the results below.

Enhanced Chemical Tolerance

High Corrosion Resistance
ePTFE Media Technology is proven to be resistant in highly corrosive environments, and will withstand attacks from common decontamination chemicals. Both components of the ePTFE Media Technology, the membrane and non-woven layers, are stable against exposure at the prescribed time and concentration for the above disinfectant agents.

Superior Water Resistance
Based on AAF International's test lab results, ePTFE Media Technology provides superior water resistance in comparison with ultrafine microglass, reducing damage risk.

Negligible Off-Gassing
ePTFE Media Technology has extremely low off-gassing of chemical components, resulting in the highest quality clean air available.

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