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China Suppliers Challenge Filair® PTFE Hydrophobic Sterile Filter - High Retention & Throughput Factory Solutions

The Challenge IM Capsule Filters are designed to meet every filtration need in the biopharmaceutical industry. With five essential series—clarification, pre-filtration & sterilizing-grade, sterile, mycoplasma removal, and gas filtration—these filters feature particle retention ranging from 0.1 to 30 µm. They cater to the entire process, from cell culture clarification to final product sterilization. Manufactured by trusted suppliers in China, these filters support high-temperature steam sterilization and gamma irradiation, ensuring compatibility with a broad spectrum of commonly used biopharmaceutical solvents, All molded parts and sealing components are devoid of colorants and adhere to Class VI and ISO 10993 biocompatibility standards, thus minimizing leachables and extractables for hygienic processing. Each filter undergoes rigorous dual integrity testing during production, with two independent testing methods employed for quality assurance, guaranteeing a 100% factory pass rate, Compliant with ISO 9001 quality management and GMP standards, the filters have successfully passed USP endotoxin, USP / biocompatibility, and USP extractables tests, with no risk of animal-derived TSE/BSE contamination. All products are validated by multiple internationally recognized agencies, including SGS and NF, offering verified filtration solutions for the complete biopharmaceutical process. Choose our reliable Challenge IM Capsule Filters, produced in our factory, to enhance your filtration processes

    Features

    Natural hydrophobicity

    High retention rate

    High throughput with low pressure drop

    Reliable bacteria and particle retention

    Typical Applications

    Vents for Fermenters, Storage Tanks, etc.

    Sterile Filtration for Compressed Air, O₂, N₂, etc.

    Operating Conditions
    Maximum Operating Temp. 80℃
    Max. Differential Pressure 0.55 MPa / 25℃
    0.10 MPa / 80℃
    Biosafety
    Endotoxin <0.25 EU/mL
    Biocompatibility
    • Compliant with USP <87> Non-cytotoxic
    • Meets USP <88> Class VI plastic biocompatibility requirements
    Sterilization

    Challenge Filair® PTFE filter is capable of up to 50 cycles of high-temperature steam sterilization.

    Filter Dimensions
    Disc Filter D50: 20 cm²
    Capsule Filter 01: 0.075 m²
    02: 0.14 m²
    04: 0.25 m²
    05: 0.34 m²
    10: 0.68 m²
    Material Construction
    Filter Membrane Hydrophobic Polytetrafluoroethylene (PTFE)
    Inner / Outer Cage Polypropylene (PP)
    Capsule Housing Polypropylene (PP)
    Capsule Vent O-Ring Silicone Rubber
    Filtration Accuracy 0.2 μm
    0.2μm Gas Capsule Filter Flow Rate
    0.2μm Gas Capsule Filter Flow Rate Diagram
    Differential Pressure vs. Flow Rate at 20 °C (L/min)
    Frequently Asked Questions

    1. What is the filtration accuracy of this gas capsule filter?

    The filtration accuracy of this hydrophobic PTFE membrane gas capsule filter is 0.2μm, offering reliable particle and bacteria retention.

    2. How many times can the Filair® PTFE filter be sterilized?

    The filter is highly durable and capable of withstanding up to 50 cycles of high-temperature steam sterilization.

    3. What materials are used to construct the capsule filter?

    The filter membrane is made of Hydrophobic Polytetrafluoroethylene (PTFE), the inner/outer cages and capsule housing are made of Polypropylene (PP), and the vent O-ring is constructed of Silicone Rubber.

    4. What are the maximum operating pressure limits for this filter?

    The maximum differential pressure limit is 0.55 MPa at a temperature of 25℃, and 0.1 MPa when operating at 80℃.

    5. Is the filter compliant with biosafety standards?

    Yes. The filter has an endotoxin level of <0.25 EU/mL. It is compliant with USP <87> Non-cytotoxic standards and meets the USP <88> Class VI plastic biocompatibility requirements.

    6. What typical applications is this filter recommended for?

    This filter is ideal for venting systems (such as fermenters and storage tanks) as well as for the sterile filtration of compressed air, oxygen (O₂), nitrogen (N₂), and other gases.