The filters are basically incorporates a hydrophobic  PTFE membrane in a polypropylene housing,  provide excellent thermal and chemical  compatibility . The Vent filters are available in  diameter 13mm, 25mm, 50mm, with pore sizes  0.22µm or 0.45µm and different connections. 

Features:

• Integrity testable 

• Robust design and construction allow for multiple autoclave  cycles 

• Designed to be reusable but also offers the convenience of  being disposable 

• Available in pre-sterilized or non-sterilized packaging 

• PTFE  Membrane and polypropylene housing offer broad  chemical compatibility 

• Optimized PTFE membrane provides superior flow rates in a  compact device 

• Provides ULPA filtration (>99.999% @ 0.3um)

Applications:

• Sterile Venting of bioreactors, fermentation tanks, media flasks, and carboys 

• Sterile gas purge of cell culture vessels or flling vessels In-line sterilization of and particulate removal from air and gases 

• Obstruct moisture to protect equipment.