THE WORLD LEADER IN CLEAN AIR SOLUTIONS HEPA AND ULPA FILTERS • 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. AstroCel II filters combine the right features to give you optimum efficiency while keeping operating costs to a minimum. The AstroCel II LPD Series filter with knife-edge cell sides was designed specifically for gel seal grid systems. With 2″, 3″, or 4″ deep media packs, the AstroCel II mini-pleat filter design reduces resistance and provides the lowest possible pressure drop. Ribbons of media maintain pleat separation within the pack, while allowing a more compact filter depth than corrugated separators. The media pack is bonded to the sides of the extruded aluminum frame with urethane adhesive, forming an airtight seal. AstroCel II microglass media is water resistant and fire retardant. AstroCel II filters are scan tested at 99.99% efficiency with a non-DOP aerosol to insure the filter is free from pinhole leaks. Also available is an ULPA (Ultra Low Penetration Air) model, which is additionally laser tested to 99.9995% at 0.10–0.20μm.

Mini-Pleat Media Pack Sturdy Construction • Highest efficiency and lowest possible pressure drop Manufactured from borosilicate microfibers, AstroCel II filter glass media is water resistant and fire retardant. • Pack depths from 2″ to 4″ • 8 pleats per inch allow the greatest amount of media in the shallowest depth • Pleat straightness to ± ¼″ – unmatched by competitors • Requires no foreign or organic separators such as adhesive or strings • Classified under UL 900 and UL 586 The media pack is permanently attached to an anodized extruded aluminum frame with a UL classified, urethane adhesive....

Lowest Possible Pressure Drop Ongoing Quality Control 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. Process control starts with sample flats of each roll of media tested for efficiency, using either a Q-127 penetrometer (HEPA media) or a Condensation Nucleus Counter (ULPA and above.)...

Performance Data Initial Resistance vs. Filter Face Velocity 0.90 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 Filter Face Velocity (FPM) Filter Face Velocity (FPM) AAF has a policy of continuous product research and improvement and reserves the right to change design and specifications without notice. ISO Certified Firm AFP-1-404D 05/15 9920 Corporate Campus Drive, Suite 2200, Louisville, KY 40223-5690 888.223.2003 Fax 888.223.6500 | www.aafintl.com