Vent/Air Filters

LifeASSURE™ PFS series PTFE filters offer the ultimate in microorganism retention for air and gas streams while providing superior air flow capacity.

• 3M Purification Inc. LifeASSURE PFS series PTFE filters with flow enhanced construction allow use of smaller, more economical air filter assemblies compared to competitive air filters.
• LifeASSURE PFS series PTFE filters provide absolute retention based on liquid bacteria challenge and aerosol bacteriophage challenge.
• LifeASSURE PFS series PTFE filters are available in a wide range of cartridge and capsule configurations to provide the most economical solution to air, gas and aggressive liquid filtration applications.

Features & Benefits:

• Flow enhancing layer construction - Higher air flow for fermenter aeration and smaller, more economical vent filter assemblies
• Liquid validation of B. diminuta retention - Reliable sterilizing performance in wet or dry conditions
• Hydrophobic PTFE membrane - Membrane will not become blocked with moisture
• 21 CFR Materials of Construction, USP Biological Safety Test, Validation Guide and Drug Master File Listing - Eases validation and regulatory submissions

LifeASSURE™ PFS series PTFE filters are optimized for applications requiring sterilization of air, gas or aggressive solvents and chemicals. The hydrophobic PTFE filter membrane prevents wetting with aqueous liquids or moisture that can block free air flow. Some applications, however, may require filtration of aggressive fluids such as acids or bases. Depending on compatibility, LifeASSURE PFS series PTFE filters can be used to provide sterile filtration of these fluids by prewetting the membrane with a low surface tension fluid such as alcohol.

Applications:

• Sterile venting of process tanks
• Sterile filtration of process air and aseptic filling lines
• Sterile venting of lyophilizers
• Sterile venting of autoclaves
• Sterile air filtration on blow, fill, and seal machines
• Sterilizing filtration of fermentation inlet and exhaust air
• Sterile filtration of aggressive liquids