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High-Performance Challenge Filair® PTFE Hydrophobic Filters from China Suppliers | Reliable Factory Solutions
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: 0.68m²
Sterilization
- Challenge Filair® PTFE filter capable of up to 50 cycles of high-temperature steam 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
Differential Pressure vs. Flow Rate at 20 °C (L/min)
Frequently Asked Questions (FAQ)
Q1: What are the main features of the Filair® PTFE filter?
A1: The filter features natural hydrophobicity, a high retention rate, high throughput with low pressure drop, and reliable bacteria and particle retention.
Q2: What typical applications is this capsule filter designed for?
A2: It is commonly used as vents for fermenters and storage tanks, and for sterile filtration of compressed air, oxygen (O₂), nitrogen (N₂), and other gases.
Q3: What are the maximum operating temperature and pressure limits?
A3: The maximum operating temperature is 80℃. The maximum differential pressure is 0.55MPa at 25℃ and 0.1MPa at 80℃.
Q4: Is the filter biocompatible and safe for biological applications?
A4: Yes. It has endotoxin levels of <0.25 EU/mL, complies with USP <87> Non-cytotoxic standards, and meets USP <88> Class VI plastic biocompatibility requirements.
Q5: Can this filter undergo steam sterilization?
A5: Yes, the Challenge Filair® PTFE filter is capable of undergoing up to 50 cycles of high-temperature steam sterilization.
Q6: What materials are used to construct the capsule filter?
A6: The membrane is made of Hydrophobic Polytetrafluoroethylene (PTFE), the inner/outer cages and capsule housing are Polypropylene (PP), and the vent O-ring is Silicone Rubber. The filtration accuracy is 0.2μm.





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