Sartorius Normal Flow Filtration: Sartopore® 2, Sartobran® P & More

Sartorius Normal Flow Filtration (NFF) products are purpose-built for the critical demands of laboratory, biotech, and pharmaceutical workflows. From upstream cell culture media preparation to downstream polishing, Sartorius NFF solutions play a central role in maintaining process purity and product safety.
Whether you need to sterilize culture media, clarify cell harvests, remove mycoplasma, or ensure contaminant-free air/gas delivery, Sartorius filters deliver consistent, validated performance at every stage.

Typical applications include:

• Sterile filtration of media, buffers, and reagents (0.22 μm/0.2 μm PES or CA membranes)
• Clarification of cell harvests, serum, and process liquids
• Mycoplasma removal for sensitive bioproduction using 0.1 μm-rated filters
• Bioburden reduction before final sterilizing filtration
• Gas and air filtration for bioreactors, fermenters, and storage vessels (PTFE hydrophobic membranes)

With proven use in vaccine manufacturing, monoclonal antibody production, and a wide range of R&D settings, Sartorius NFF is the standard for labs and production facilities prioritizing quality and compliance.

Key Advantages & Technical Strengths of Sartorius NFF

Sartorius Normal Flow Filtration products offer industry-leading performance, thanks to innovative membrane technologies and robust construction. Here’s what sets them apart:

Compared with competing filtration products, Sartorius NFF solutions consistently achieve higher flow rates and longer service life, even with challenging or high-fouling samples.

Product Categories: Sartopore® 2, Sartopore® 2 XLM, Sartobran® P, Sartolon®, Sartofluor®

Sartorius Normal Flow Filtration includes a comprehensive range of filter families, each designed to tackle specific laboratory and bioprocessing filtration challenges. Below you’ll find the main product series, their typical applications, and verified SKUs matched to Sartorius’s official catalog. This structure ensures both clarity and practical guidance for selection.

Sartopore® 2 XLM Series (PES, Dual-Layer, 0.2 + 0.1 µm)

• Purpose: Ultimate retention, sterile filtration with mycoplasma removal, high-volume processes requiring extra security.

• Verified SKUs:

  • FFU500271 – Midicaps® Size 0, MPX Male, 0.2 + 0.1 µm

  • FFU500226 – MidiCaps® Size 7, 0.2 + 0.1 µm

• Membrane: Polyethersulfone (PES), dual-layer

• Application: Mycoplasma-grade filtration for cell culture media, vaccines, biotherapeutics

Sartopore® 2 Series (PES, 0.2 µm or 0.45 µm)

• Purpose: Universal sterile filtration and clarification for buffers, media, process liquids.

• Verified SKUs:

  • FFU500256 – Midicaps® Size 0, MPX Male, 0.2 µm

  • FFU500214 – Midicaps® Size 0, 0.45 µm

• Membrane: Polyethersulfone (PES)

• Application: Sterilizing-grade filtration, bioburden reduction, prefiltration

Sartobran® P Series (Cellulose Acetate, 0.2 µm or 0.45 µm)

• Purpose: Low protein binding, sterile filtration for protein-rich or sensitive solutions.

• Verified SKUs:

  • FFU500225 – Midicaps® Size 0, MPX Male, 0.2 µm

  • FFU500227 – Midicaps® Size 7, 0.2 µm

• Membrane: Cellulose Acetate (CA)

• Application: Serum, plasma, vaccines, biologics

Sartolon® Series (Nylon, 0.2 µm)

• Purpose: Chemical- and solvent-resistant filtration for demanding applications.

• Verified SKUs:

  • FFU500217 – Midicaps® Size 0, MPX Male, 0.2 µm

• Membrane: Nylon

• Application: Aggressive solvents, organics, chemical sample prep

Sartofluor® / Midisart® Series (PTFE, Hydrophobic, 0.2 µm)

• Purpose: Sterile air and gas venting, hydrophobic filtration of corrosive or non-aqueous liquids.

• Verified SKUs:

  • FFU500220 – Midicaps® Size 0, MPX Male, 0.2 µm (PTFE)

• Membrane: PTFE (hydrophobic)

• Application: Sterile air/gas filtration, aggressive fluid handling

Filtration Selection Guide & FAQs

1. How do I choose between 0.1 µm and 0.2 µm filters?

• 0.2 µm is standard for sterile filtration, reliably removing bacteria.
• 0.1 µm is recommended for mycoplasma removal or extra safety in sensitive cell culture applications.

2. Which membrane material is best for my application?

• PES (polyethersulfone): High flow, low protein binding—ideal for most sterile filtration.
• CA (cellulose acetate): Extremely low protein binding—perfect for vaccines, plasma, or protein-rich solutions.
• Nylon: Great for aggressive chemicals, organic solvents.
• PTFE: Best for hydrophobic air/gas filtration and highly corrosive liquids.

3. What format should I choose (capsule, cartridge, bottle-top)?

• Bottle-top: Convenient for small volumes (50 mL–1 L) and lab-scale use.
• Capsule/Cartridge: Suited to process-scale or integrated single-use systems.

Why Choose Sartorius & Iright – Your Trusted Supplier

With decades of expertise, Sartorius stands at the forefront of laboratory and bioprocess filtration technology. Each filter in the Normal Flow Filtration Collection is manufactured to the highest standards, delivering reliability and regulatory compliance at every turn.

When you source Sartorius filters through Iright (iright.com), you benefit from:

• Authentic, traceable products direct from an authorized supplier

• Expert technical support for product selection and troubleshooting

• Fast, reliable quotes and shipping options to fit your lab’s schedule

• Full support for custom solutions or large-volume procurement

Ready to optimize your workflow?
Contact Iright today for more information, to request a quote, or to discuss your specific application needs. Trust in Sartorius and Iright to keep your research and production running smoothly.