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Sterilizing-Grade Cartridge Filter(PTFE 0.2μm)

Product Introduction

The Alioth Alipore® TAHF series features a hydrophobic and chemically inert PTFE (polytetrafluoroethylene) filter membrane. This product efficiently retains microorganisms and particles in wet or humid gas through stringent liquid bacteria retention verification. It offers high strength and resistance to multiple steam sterilizations in place. The TAHF series is suitable for sterile gas filtration and organic solvent filtration with strict quality requirements in pharmaceutical applications.


Key Features and Benefits

  • Natural hydrophobic material
  • High gas flux and low-pressure drop
  • Reliable bacterial retention and particles removal ability
  • Excellent chemical compatibility


Typical Applications

  • Sterile gas filtration
  • VentSterile filtration of most organic solvents


Typical Flow Characteristics

Air Flow Rate and Pressure Drop -Alipore® TAHF 0.2μm Cartridge Filters

Air Flow Rate and Pressure Drop -Alipore® TAHF 0.2μm Alicap L300 Capsule Filters


Product Specifications—Cartridge Filter


  5inch 10inch 20inch 30inch



Maximum Length


69 mm
150 mm


69 mm
320 mm


69 mm
560 mm


69 mm
800 mm

Filtration Area 0.35 m2 0.7 m2 1.4 m2 2.1 m2
Pore Size 0.2 μm
Materials of

Filter membrane: Polytetrafluoroethylene (PTFE)

Supporting Layer: Polypropylene (PP)
O-rings of capsules vent: Silicone

Liner / Cartridge body: Polypropylene (PP)
End caps: Polypropylene/ Polycarbonate (PP/PC)

Bacterial Retention >107 cfu/cm2 B. diminuta ( ATCC® 19146TM


Forward: 5.0 bar(72.5 psi)@ 25°C / 3.0 bar(43.5 psi)@ 80°C
Reverse: 2.0 bar(29.0 psi)@ 25℃
Bubble Point ≥1200 mbar(17.4 psi)(wetted with 60% IPA, 20℃, compressed air)
Diffusion Through a 60% IPA wet membrane at 1040 mbar (15 psi) (20℃, compressed air )
≤6.5 mL/min ≤ 13 mL/min ≤ 26 mL/min ≤ 39 mL/min
Water Intrusion at 2500 mbar (36 psi) (20℃, compressed air )
≤ 0.25 mL/min ≤ 0.5 mL/min ≤ 1.0 mL/min ≤ 1.5 mL/min
Sterilization Steam in place: 135℃, 60 min, 25 cycles
Autoclave: 135℃, 60 min, 25 cycles
Biological Safety All the construction components of this filter comply with the requirements for biological safety of Class VI plastics in current USP<88>
Indirect Food Additive The primary construction components of this filter comply with the requirements for food
contact materials as stipulated in EU 1935 / 2004 / EC and FDA 21 CFR 177-182
Cleanliness Cleanliness meets the requirements for nonfiber releasing filter as specified inFDA21 CFR211.72 and 210.3 (b) (5) (6), and the level of insoluble particles in rinsing liquid meets the requirements of USP< 788>
Endotoxin The endotoxin level of cartridge rinsing liquid is <0.25 EU/mL as indicated by gel method, which complies with the requirements of USP<85>
Integrity 100% has passed the integrity test
Manufacturing Environment

Manufactured in conformance with cGMP

Ordering Information


For further information, please contact us and Alioth technical team will provide a comprehensive service for your filtration process.