cartridges and housings for sterile air and gas

Pearl Filtration are an Australian supplier of sterilisation filter cartridges and housings designed for air and gas streams. Filters are suitable for many sterile applications including: fermentation inlet and outlet air, venting & tank venting, lyophilisers & freeze-driers, autoclaves, blow-fill-seal equipment, and removing particles from air.


Typical industry users of sterile air filters: Food & Beverage, Dairy, Medical, Pharmaceutical



Stainless steel housings to suit sterilisation cartridges are available with tri-clover ports in lengths; 5″, 10″, 20″, 30″, 40″. Housing seals are typically 226/Spear. Specialised vent housings are also available.



Sterile air vent cartridges are constructed of hydrophobic Polytetrafluoroethylene (PTFE) membrane filter medium, validated to sterilisation grades 0.2 micron in liquid and 0.01 micron in gas. We stock vent filters compatible with various brands, including equivalents to the specialised Dominic Hunter vent filters. All vent filter cartridges are fully validated to aerosol and viral challenge. Filter cartridges are integrity testable by all methods including Water Intrusion Test. A range of sizes, end-caps, and O-ring materials are available.

Vent A & Vent B Sterile Air Filters

Vent A & Vent B Cartridges

Pearl Filtration stock Vent A and Vent B sterile air cartridges – equivalents to the Dominic Hunter range, and still commonly used throughout Australia. The vent filters are constructed of PTFE, with 0.01 micron retention (gas). These vent filters are available in either 90 mm or 163 mm nominal lengths. They do not require a separate housing, and are fixed directly to the tank’s vent via the 1/2″ BSP thread.

Filter cartridge integrity test machine & service

Pearl Filtration offer an Integrity Testing Service for several of our cartridge filter products. Integrity Testing is an essential requirement of critical process applications. Testing can be conducted upon filter supply or site visits throughout Australia can be arranged.

chemical, dairy, paint, food, beverage, pharmaceutical filters

Pearl Filtration supply filter elements and systems to a large and varied field of industries. Our products are often available in a range of diverse materials to ensure they are compatible with many different applications.