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Filtration & Separation

Filtration & Separation

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Filtration & Separation

Filtration solutions for every part of the process, from clarification to final sterilizing filtration, virus removal, and concentration and diafiltration (TFF). From laboratory syringe and centrifugal filters to production cartridges and capsules and integrity testing equipment, we support you with consistent quality documentation from a single manufacturer.

Product Lines
  • Sterilizing-grade liquid and gas filters (PES · PVDF)
  • Virus removal filters
  • Depth filters (clarification)
  • TFF cassettes · hollow fiber modules
  • Filter integrity testers · lab TFF systems

Brands at This Stage

Cobetter
Cobetter
Filtration and single-use from one manufacturer
Single-Use & Fluid Management · Filtration & Separation

Product Selection Information

These are the criteria to look at when choosing a product for your application, and the information that is helpful to share when you contact us. Specifications and options list only what has been confirmed.

Sterilizing-Grade Filters
Cobetter · Filtration & Separation

Sterilizing-Grade Filters

Ask About Sterilizing Filter Selection
Main Uses
  • Sterilizing-grade filtration of process liquids
  • Sterilizing-grade filtration of gas lines (gas filter series)
  • Laboratory-scale filtration (syringe filters · centrifugal filters)
Selection Criteria
  • Fluid: media · buffers · intermediates · final bulk; liquid or gas
  • Membrane material and its chemical compatibility with the fluid · adsorption characteristics
  • Size and format: specifications matched to throughput and installation method
  • Sterilization method and integrity test method
  • Technical documents to request: validation guides · extractables data · certificates of analysis
Confirmed Specifications & Options
  • Membrane materials for liquids: PES · PVDF
  • Product series for liquids: DPSTF(PES) · DLHPVDF/LHPVDF · APSBR · SPSHR
  • Sterilizing-grade series for gases: DGPFMP/GPFMP · HSGPFP
  • For laboratory use: syringe filters · centrifugal filters
What to Tell Us
  • Type and composition of the fluid to be filtered
  • Throughput per batch and target filtration time
  • Process stage and sterilization method
  • Filter and housing specifications currently in use
  • Scope of technical documentation needed
Guide · What to Check When Choosing a Sterilizing-Grade Filter
Cobetter · Filtration & Separation

TFF Cassettes · Hollow Fiber Filters

Ask About TFF Filter Selection
Main Uses
  • Cassettes and hollow fiber filters for tangential flow filtration (TFF) processes
  • Laboratory-scale TFF (Biophsep™ MiniLab TFF system)
Selection Criteria
  • Format: cassette or hollow fiber
  • Size of the target substance and the matching molecular weight cut-off · pore size
  • Membrane material and the target substance's adsorption · shear sensitivity
  • Membrane area: based on throughput and process time
  • Fit compatibility with existing holders and systems
Confirmed Specifications & Options
  • Formats: TFF cassettes · hollow fiber filters
  • Related equipment: Biophsep™ MiniLab TFF system
What to Tell Us
  • Type and molecular weight · size of the target substance
  • Process volume, target concentration factor and number of diafiltration exchanges
  • TFF system · holder currently in use
  • Specifications of the membrane currently in use
  • Process scale: laboratory · pilot · production
Cobetter · Filtration & Separation

Virus Removal Filters (Viruclear)

Ask About Virus Filter Selection
Main Uses
  • Virus removal filtration step in biopharmaceutical processes
  • Viruclear™ virus removal filter series
Selection Criteria
  • Target product: protein type · concentration · buffer composition
  • Size range of the viruses to be removed
  • Whether prefiltration (a prefilter) is needed
  • Scale: from small formats for process development to production sizes
  • Technical documents to request: virus removal study data · integrity test method
Confirmed Specifications & Options
  • Product series: Viruclear™ virus removal filters
What to Tell Us
  • Type · concentration · buffer composition of the target product
  • Throughput per batch and target process time
  • Virus filter currently in use
  • Virus removal validation plan · schedule
  • Process stage: development · clinical · commercial production
Cobetter

Cobetter

Filtration and single-use from one manufacturer

Brand DetailsContact
Filtration & Separation
  • Viruclear™ virus removal filters
  • Roheap™ CSD depth filters
  • TFF cassettes · hollow fiber filters
  • Sterilizing-grade liquid filters (PES · PVDF) · gas filters
  • Membrane chromatography
  • Syringe filters · centrifugal filters (for laboratory use)
Filtration Equipment
  • Biophsep™ MiniLab TFF system
  • Certitest™ filter integrity tester

This brand's products in other process stages Single-Use & Fluid Management: Fluid Management (Single-Use), Fluid Management Equipment ›

Guides for This Stage

All Guides
Filtration & Separation · Last reviewed 2026.10.09

What to Check When Choosing a Sterilizing-Grade Filter

A sterilizing-grade filter is defined not by its pore size rating but by a bacterial challenge test and process-specific validation. Based on the original regulatory documents, this guide covers what to check at the selection stage: the grade definition, material compatibility, integrity testing, sizing and supplier documentation.

Read ›

Request a Quote · Filtration & Separation

Tell us your process stage and the product lines you need, and our technical specialists will respond quickly. TEL +82-2-6409-9338 · info@b2bio.co.kr

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