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High-Quality Challenge Pore® PES Filters from China Factory | Trusted Suppliers for Biopharmaceutical Solutions
Features
- Reliable bacteria and particle retention
- Broad chemical compatibility
- High flow rate
- High throughput
Typical Application
- Prefiltration of cell culture media
- Buffer filtration
Operating Conditions
Maximum operating temperature: 80℃
Maximum differential pressure: 0.55MPa/25℃, 0.1MPa/80℃
Material Construction
| Filter Membrane | Hydrophilic Polyethersulfone (PES) Inner Cage, Outer Cage, |
| Inner Cage, Outer Cage, | Polypropylene (PP) |
| Capsule Housing | Polypropylene (PP) |
| Capsule Vent O-Ring | Silicone Rubber |
| Filtration Accuracy | 0.45μm /0.65μm/0.8μm |
Biosafety
| Endotoxin | <0.25 EU/mL |
| Biocompatibility |
|
Dimension
| Disc Filter | D50: 20cm² |
| Capsule Filter | 01: 0.075m² 02: 0.14m² 04: 0.25m² 05: 0.34m² 10: 0.68m² |
* Challenge Filair® PTFE filter cable of up to 50 cycles of high-temperature steam sterilization.
Sterilization
Challenge Pore® PES capsule filter cable of be sterilized by high-temperature steam (121 °C for 30 minutes, up to 5 cycles) or by gamma irradiation (25–40 kGy)
0.45μm Pre-Filtration Capsule Filter Flow Rate

Differential Pressure vs. Flow Rate at 20 °C (L/min)
Frequently Asked Questions
What are the primary applications for this PES capsule filter?
Typical applications include the prefiltration of cell culture media and buffer filtration in biopharmaceutical production.
What materials are used in the construction of the filter?
The filter membrane is made of Hydrophilic Polyethersulfone (PES), the inner/outer cage and capsule housing are made of Polypropylene (PP), and the capsule vent O-ring is Silicone Rubber.
What is the maximum operating temperature and pressure?
The maximum operating temperature is 80℃. The maximum differential pressure limits are 0.55MPa at 25℃ and 0.1MPa at 80℃.
How can the Challenge Pore® PES capsule filter be sterilized?
It can be sterilized using high-temperature steam at 121 °C for 30 minutes (up to 5 cycles) or through gamma irradiation at a range of 25–40 kGy.
Does the capsule filter meet biosafety standards?
Yes, the filter meets biocompatibility requirements. It is compliant with USP <87> Non-cytotoxic standards, meets USP <88> Class VI plastic biocompatibility requirements, and has endotoxin levels <0.25 EU/mL.





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