Choose the Millex® filter to suit your application:
![]() |
![]() |
|
Sterile filters for cell culture and pharmaceutical applications |
Non-sterile filters for sample preparation |
Millex® syringe filters set the standard for reliable small volume filtration.
Manufactured for Reliable Performance
Manufacturing occurs in a controlled environment using an automated process. Sterile devices are provided with a Certificate of Quality.Choose Your Size
- 4, 13, 25 and 33 mm diameters to process solutions from 1 to 200 m
- 50 mm to process solutions up to 4 L
Faster Flow Rate
33 mm Millex® filters have 20% more filter surface area for significantly higher flow rate and throughput.Low Hold-up Volume
Despite the increased membrane area in the 33 mm Millex® filters, the hold-up volume (after air purge) is only 80 µL, a 20% decrease compared to the hold-up volume of 25 mm filtersLow Extractables
A variety of membranes and housings ensure chemical compatibility with a range of samples and solvents.Choose from a Variety of Membranes
- Durapore® (PVDF) Membrane: Lowest binding membrane for protein-rich solutions
- Millipore Express® PLUS (PES): Fast flow rates, high throughput and low protein binding for cell culture media preparation
- MCE (Mixed cellulose esters) MF-Millipore™ Membrane: Most referenced general purpose membrane
- Nylon Membrane: Broad chemical compatibility for use with aqueous and organic solutions
- Hydrophilic PTFE Membrane:
- HPLC-certified for low levels of UV-absorbing extractables – provides the cleanest samples for HPLC analysis
- Sterilization of gases and venting applications



