LeSiever 0.2 μm Sterilizing Hydrophobic PES Air Filter Assembly is equipped with independently developed hydrophobic PES membrane by PureLeap, which provides excellent ventilation conditions for cell culture due to its good breathability and hydrophobicity. It is well known that hydrophobic PES membrane has better air permeability than PVDF membrane, and its inherent gamma irradiation resistance is more stable than PTFE, making it particularly suitable for air sterilization applications that require irradiation, such as disposable culture systems.