Gas/Vent Filtration

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Hydrophobic sterilizing-grade filters are commonly used as air-vents on processing tanks to maintain near ambient pressure in the tank while ensuring sterility. Tank vent filters remove micro-organisms from the gas as it flows in or out of the tank. MilliporeSigma offers multiple membranes and device formats for vent filtration.

Aervent® Filters

Aervent 0.2 µm hydrophobic polytetrafluoroethylene (PTFE) filters provide sterility assurance, high flow rates and throughput and are used in pharmaceutical applications where it is critical to use a phobic filter with validated bacterial and viral retention capabilities.  

Available Formats

• Aervent® Optiseal® Cartridges 
• Aervent® Cartridges/Capsules
• Aervent®-50 Filters

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Hydrophobic Durapore® Filters

Sterilizing-grade Hydrophobic Durapore® 0.22 µm polyvinylidene fluoride (PVDF) membranes for reliable removal of contaminants and microorganisms from gases.

Available Formats

• Hydrophobic Durapore® Cartridges
• Hydrophobic Durapore® Capsules
• Hydrophobic Durapore® Optiseal® Cartridges 
• Millipak® Capsules
• Millidisk® Cartridges

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Millipore Express® SPG

Sterilizing-grade Millipore Express® SPG filters are gamma stable capsule filters containing 0.2 μm sterilizing-grade membrane. These filters provide optimal gas filtration and venting in single-use applications.

Available Formats

• Millipore Express® SPG Capsules

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Aerex® Filters

Aerex® 0.2 µm PTFE filters are designed for the removal of bacteria and viruses from moist gas streams in non-critical applications. Aerex® filters are not validated for bacterial retention.

Available Formats

• Aerex® 0.2 µm Cartridges

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