What is the minimum efficiency for a Super ULPA filter on MPPS?

A Super ULPA (Ultra-Low Penetration Air) filter is designed to capture extremely small particles, boasting the highest levels of filtration efficiency for particulate matter. The "Minimum Efficiency on MPPS" refers to its efficiency at capturing the most penetrating particle size (MPPS), which is the particle size that is least effectively trapped by the filter media.

For a filter to qualify as a Super ULPA filter, it must achieve a minimum efficiency of 99.9999% on MPPS. This high level of efficiency is critical for environments that require stringent air cleanliness, such as clean rooms, pharmaceutical manufacturing, and certain laboratory settings. It ensures that nearly all airborne particles, especially those at the most challenging size for filtration, are captured and prevented from passing through the filter.

While other filter classes, like HEPA and ULPA, have lower efficiency requirements, the definition and performance metrics for a Super ULPA filter specifically stipulate the 99.9999% efficiency threshold, reflecting its superior filtration capabilities. This distinction is vital for professionals in the air filtration industry to understand when selecting filters for specific applications requiring the highest levels of air purity.