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Midisart® filters are available with PTFE (autoclavable) or PES (gamma-irradiatable | autoclavable) membrane. Ready-to-use, 100 % integrity tested and fully validated.

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Products (1)

Midisart® 2000
Midisart® 2000
Item no.:   17805--------UQN
Non-sterile, bulk packed (plastic bucket)

The Midisart® filter family is the clear choice for small scale sterile air/gas filtration applications.

Sartorius offers two Midisart® variants that perfectly match all requirements:

Midisart® 2000

The most popular. Reliable performance since decades.

  • Hydrophobic PTFE membrane
  • Liquid bacteria challenge test
  • Autoclaving (max. 60 cycles)
  • 100% integrity tested
  • Clear laser labeling (no ink used)
  • Light-weight construction
  • Superior flow rates

Sartopore® Air Midisart®

For critical applications. Perfect for single-use assemblies.

  • Hydrophobic PES membrane
  • Gamma-irradiatable
  • Autoclaving (max. 3 cycles)
  • Liquid bacteria challenge test (bi-directionally)
  • 100% integrity tested
  • Clear laser labeling (no ink used)
  • No fleeces used
  • Superior flow rates

Critical Application Validation Package:

  • Aerosol bacteria challenge test
  • Aerosol phage challenge test
  • Aerosol particle challenge test
  • Particle release specification


While Sartopore® Air Midisart® are designed for any kind of (critical) application, Midisart® 2000 cannot be gamma-irradiated (what is required for most single-use applications).

  • Filling and transfer vessels
  • Holding and storage tanks for sterile media
  • Autoclaves
  • Carboys
  • Solvent filtration
  • Mixers
  • Small (single-use) fermenters [Sartopore® Air recommended]
  • Single-use assemblies [Sartopore® Air recommended]
  • Disposable bags/bottles [Sartopore® Air recommended]
  • Tubing systems [Sartopore® Air recommended]
  • Cell culture chambers [Sartopore® Air recommended]
  • Fill & Finish applications [Sartopore® Air recommended]


Midisart® 2000 — The ready-to-use filter for sterilizing gases and venting
en 1.6 MB


Midisart® Test Manifold 10x
en 146.3 kB
Midisart® 2000 — Ready-to-use filter for sterilizing gases and venting
en 847.6 kB
Midisart® BV — Gamma-irradiatable Sterile Venting Filter for Single-Use Applications
en 128.5 kB
Vacusart — Reliable Retention of Bacteria, Particles and Water
en 70.1 kB

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