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Sterile Filtration

Sterile Filtration
Overview

Cobetter offer a comprehensive portfolio of sterilizing-grade filters for sterile filtration of liquid. They can be fully scaled up and is suitable for various stages from research and development to production.

The GMP guidelines issued by regulatory agencies require process validation for final aseptic products, requiring that the sterilizing-grade filters be integrity tested to ensure filter performance is verified before and after filter use. The validation items include bacterial retention, chemical compatibility, leachable test, and adsorption evaluation.

Sterile Filtration Recommended for Complex Fluids

  • Cobetter Purcise™ SLEB Sterilizing-grade Filter: Double-layer hydrophilic PES membrane. Pore size: prefilter 0.2μm + final filter 0.2μm 
  • Cobetter Purcise™ SEAS Sterilizing-grade Filter: Double-layer hydrophilic PES membrane. Pore size: prefilter 0.45μm + final filter 0.2μm 

Sterile Filtration Recommended for Mycoplasma Removal

  • Cobetter Purcise™ MLE Filter: Double-layer hydrophilic PES membrane. Pore size of MLEB: prefilter 0.2μm + final filter 0.1μm; Pore size of MLES: prefilter 0.45μm + final filter 0.1μm 
  • Cobetter Purcise™ MEC Filter: Double-layer hydrophilic PES membrane. Pore size of MECB: prefilter 0.2μm + final filter 0.1μm; Pore size of MECS: prefilter 0.45μm + final filter 0.1μm 

Sterile Filtration Recommended for Cell Culture Media

  • Cobetter Purcise™ SLT Filter: Double-layer hydrophilic PES membrane. Pore size of SLTS: prefilter 0.45μm + final filter 0.2μm; Pore size of SLTH: prefilter 0.65μm + final filter 0.2μm; Pore size of SLTL: prefilter 0.8μm + final filter 0.2μm
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