0102030405
Challenge Filair® PTFE Hydrophobic Sterile Filters - High Retention & Throughput from China Suppliers and Factory
Features
- Natural hydrophobicity
- High retention rate
- High throughput with low pressure drop
- Reliable bacteria and particle retention
Typical Application
- 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℃
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 |
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.
Frequently Asked Questions
What are the main features of the Filair® PTFE filter?
The filter features natural hydrophobicity, a high retention rate, high throughput with low pressure drop, and reliable retention of bacteria and particles.
What materials are used in the construction of this filter?
It is constructed with a Hydrophobic Polytetrafluoroethylene (PTFE) membrane, Polypropylene (PP) for the inner cage, outer cage, and capsule housing, and Silicone Rubber for the capsule vent O-ring.
What are the maximum operating temperature and pressure limits?
The maximum operating temperature is 80℃. The maximum differential pressure is 0.55MPa at 25℃ and 0.1MPa at 80℃.
Does the filter meet biosafety and biocompatibility standards?
Yes, it has endotoxin levels under 0.25 EU/mL, is compliant with USP <87> Non-cytotoxic standards, and meets USP <88> Class VI plastic biocompatibility requirements.
What are the available dimensions for the disc and capsule filters?
The Disc Filter is available in D50 (20cm²). The Capsule Filter is available in sizes 01 (0.075m²), 02 (0.14m²), 04 (0.25m²), 05 (0.34m²), and 10 (0.68m²).
Can this filter withstand steam sterilization?
Yes, the Filair® PTFE filter can withstand up to 50 cycles of high-temperature steam sterilization.





Tangential Flow Filtration(TFF) System
Jump Pump
FIT Integrity Tester
High Pressure Homogenizers
Microfluidics