Deep-pack AstroCel II HEPA filters for extended height housings are available in 4" deep packs to provide longer life and lower pressure drop than competitive designs. This AstroCel II filter functions as a replacement filter for PharmaGel ceiling modules, which are designed for pharmaceutical and biotech industry applications. The filters can be tested and easily replaced without disturbing the module housing or risking bypass leakage.

Each AstroCel II filter cartridge includes a pocket of gel sealant around the downstream perimeter of the filter. When the filter is installed, a knife edge on all four sides of the housing penetrates the channel of gel to form an airtight seal.

The 4" media pack AstroCel II provides 99.99% minimum efficiency. A laser-tested ULPA filter providing 99.9995% efficiency at 0.12μm is also available. AAF filters are scanned for pinhole leaks before shipping to ensure trouble-free installation.