LPD Series HEPA and ULPA Filters

HEPA and ULPA Filters for State-of-the-Art Cleanroom Requirements • Lightweight and compact • Easy installation — no corrugated separators • Mini-pleat design features maximum media cleaning potential • Lowest possible pressure drop reduces operating costs • Available in a range of cleaning efficiencies The AAF AstroCel II LPD Series is a unique family of mini-pleat HEPA and ULPA filters designed to meet the demanding airflow and efficiency requirements of the semiconductor, pharmaceutical, biotech, food processing, and other industries in which airborne contaminants must be carefully controlled....

Sturdy Construction Manufactured from borosilicate microfibers, AstroCel II filter glass media is water-resistant and fire-retardant. Neoprene Gasket Seal Frame The media pack is permanently attached to an anodized extruded aluminum frame with a UL classified, white urethane adhesive. The AstroCel II LPD Series filters with knife edge cell sides was designed specifically for gel seal grid systems. The grid consists of a network of E-channel extrusions in which a gel sealant is poured to assure an airtight seal around the edges. Frames are available with gasket seal, gel seal, or knife edge seal...

Operating Data HEPA FILTER MEDIA 99.99% Minimum Efficiency On 0.30 Micrometer Particles ULPA FILTER MEDIA 99.9995% Minimum Efficiency On 0.10 to 0.20 Micrometer Particles Lowest Possible Pressure Drop Because of the relatively large volumes of air handled in a typical cleanroom application, operating cost is a prime consideration in the design of the air filtration system. One of the most important areas to be evaluated is the resistance or pressure drop across the HEPA filters, because fan horsepower is the single biggest energy consumer in the cleanroom. Some manufacturers determine the test...