China Challenge Filair® PTFE Hydrophobic Sterile Filters - High Retention & Throughput from Trusted Suppliers & Factory
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 temperature: 80℃
- Maximum differential pressure: 0.55MPa/25℃, 0.1MPa/80℃
Biosafety
| Endotoxin | <0.25 EU/mL |
| Biocompatibility |
|
Filter Dimensions
- Disc Filter: D50: 20 cm²
- Capsule Filter:
- 01: 0.075m²
- 02: 0.14m²
- 04: 0.25m²
- 05: 0.34m²
- 10: 0.68 m²
Sterilization
Material Construction
| Filter Membrane | Hydrophobic Polytetrafluoroethylene (PTFE) |
| Inner Cage, Outer Cage | Polypropylene (PP) |
| Capsule Housing | Polypropylene (PP) |
| Capsule Vent O-Ring | Silicone Rubber |
| Filtration Accuracy | 0.2μm |
0.2μm Gas Capsule Filter Flow Rate

Frequently Asked Questions (FAQ)
The filtration accuracy of this gas capsule filter is 0.2μm.
The filter membrane is made of Hydrophobic Polytetrafluoroethylene (PTFE), the inner cage, outer cage, and capsule housing are Polypropylene (PP), and the capsule vent O-ring is Silicone Rubber.
The maximum operating temperature is 80℃. The maximum differential pressure is 0.55MPa at 25℃ and 0.1MPa at 80℃.
The Challenge Filair® PTFE filter is capable of undergoing up to 50 cycles of high-temperature steam sterilization.
Yes, it is compliant with USP <87> Non-cytotoxic standards and meets USP <88> Class VI plastic biocompatibility requirements with endotoxin levels under 0.25 EU/mL.
The Disc Filter features a D50 size of 20 cm². The Capsule Filter is available in filtration areas of 0.075m² (01), 0.14m² (02), 0.25m² (04), 0.34m² (05), and 0.68 m² (10).





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