The AstroCel II Series is 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.

With a 2" or 4" deep media pack, the AstroCel II’s mini-pleat 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 separation and precision straightness of the pleats allow air to move throughout the entire depth of the filter, utilizing the media’s full cleaning potential. The media pack is bonded to the sides of the fire-retardant particle board frame, forming an airtight seal. AstroCel II microglass media is water-resistant and fire-retardant.

AstroCel II filters with wood cell sides are scan tested at 99.99% efficiency to insure the filter is free from pin hole leaks. AAF uses a proprietary static scan test with a challenge aerosol of non-toxic, polyfunctional alcohol.