What is PES Syringe Filter
Filson PES syringe filter is ideally designed to remove bacteria, virus, microorganism or other particles larger than 0.05 micron with a higher filtration efficiency. Its main purpose is to offer more reliable sample results and help to extend components’ service life.
Since polyethersulfone(PES) membrane is mainly hydrophilic, our PES membrane syringe filter is best suitable for liquids filtration. In addition, if you need a syringe filter in air or gases filtration, hydrophobic PES membrane will meet your needs better.
Filson PES syringe filter mainly composes of membrane, housing and connector, therefore our filter has a robust construction to resist high pressure up to 10.5 bar. Owing to the outstanding chemical property, our filter is ideal for strong bases, corrosion or organic solvents filtration.
Filson has a series of PES syringe filters, including 0.2 micron PES syringe filter, 0.45 micron PES syringe filter, 13mm PES syringe filter or 33mm PES syringe filter. Based on your specific usage, we can also provide you high-quality sterile or hydrophilic/hydrophobic PES syringe filter.
PES Syringe Filter Categories

Filson sterile PES syringe filter, one kind of sterile syringe filter, is ideally used in sterile environment including laboratory filtration. Having polypropylene housing, our filter features in outstanding chemical stability with pH value ranging from 1 to 14.

Made of hydrophobic PES, Filson hydrophobic PES syringe filter is suitable for venting, degassing or other gases filtration. With uniform pore, our filter has larger surface area and faster flow rate to filter sample as soon as quickly.

Since hydrophilic PES membrane is easy to be wet, Filson hydrophilic PES syringe filter is ideally used in aqueous solutions filtration. Having strong mechanical strength, it can work normally under high pressure and high heat environment.
PES Syringe Filter Types by Micron Rating

Filson 0.2 micron PES syringe filter offers an effective solution on removing most bacteria, virus or other particles larger than 0.2 micron. Having excellent chemical property, it can be widely used in corrosion, acid, bases and organic solvents filtration.

With uniform pore and broad diameter, Filson 0.22 micron PES syringe filter has larger filtration area to filter more sample volume up to 200 ml. Due to lower protein binding capacity, our filter has maximum protein recovery.

Having high-quality PES membrane and PP housing, Filson 0.45 micron PES syringe filter has high pressure resistance up to 10.5 bar. And it is ideally designed to capture most bacteria greater than 0.45 micron.

Filson 0.8 micron PES syringe filter has lower extractables and less hold-up volume, hence it can reduce sample loss and offer more reliable analysis. And it can be widely used in pharmaceutical, chemical or food&beverage industry.

Owing to the 1.2 micron rating membrane, Filson 1.2 micron PES syringe filter is ideal for removing larger particles. And with broad diameter up to 47mm, our filter has faster flow rate up to 47 ml/min.
PES Syringe Filter Types by Diameter

Mainly available in 0.2 and 0.45 micron, the effective filtration area of Filson 4mm PES syringe filter is 0.125 cm2. The general connector is female luer lock inlet and male luer slip outlet, therefore our filter has better sealing to improve efficiency.

Having a robust construction, Filson 13mm PES syringe filter can work normally under high heat and high pressure environment. With 13mm diameter, our syringe filter has larger effective surface area than ordinary ones.

Owing to the exact diameter, Filson 25mm PES syringe filter has huge sample volume up to 100 ml. Since most PES membrane is non-sterile, our PES syringe filter can be sterilized by autoclaving or gamma irradiation.

Filson 30mm PES syringe filter features in huge filtration throughput and low protein binding capacity. C0mpared to other syringe filter filters, our 30mm syringe filter has larger filtration area and outstanding efficiency.
PES Syringe Filter Outstanding Benefits

Due to the 50mm diameter, Filson PES syringe filter has larger effective surface area to obtain huge sample volume up to 200 ml.

Utilizing high-quality PES membrane, our PES syringe filter has eminent chemical compatibility with strong bases, protein, corrosion or organic solvents.

Filson has good partnership with DHL/UPS/TNT/Fedex, and we will choose quick and economical methods to transport your products.

The common connector is female luer lock inlet and male luer slip outlet, you can also choose hose barb or stepped barb based on your application.
PES Syringe Filter Advantages
Using Filson PES syringe filter in sample filtration, there are various advantages:
- Reliable results: Since PES membrane syringe filter has lower extractables and lower protein binding, the filtered sample will has maximum protein recovery to obtain more reliable results.
- High efficiency: Compared to nylon, PVDF or polypropylene, PES membrane filters offers high flow rate at very low differential pressures. Therefore, our filter has higher filtration efficiency to filter sample quickly.
- Multiple applications: Filson PES syringe filter can be sterilized by autoclaving at 121℃ for 15 minutes or gamma irradiation, so you can use it in both sterile and non-sterile applications.


PES Syringe Filter Features
- Multiple pore size ranging from 0.05 to 10 micron
- Elaborate pore size to maintain stable and continuous filtration
- High pressure resistance up to 130℃
- Rigid structure to withstand high pressure up to 10.5 bar
- Excellent chemical compatibility with pH value ranging from 1 to 14
- Larger filtration area up to 19.8 cm2 with broad diameter
- 5 – 200 ml sample volume for both small- and large-volume filtration
- Twice greater filtration throughput than conventional filters
Why Choose Filson PES Syringe Filter


Filson PES syringe filter has wide pore size ranging from 0.05 to 10 micron, so it is your premier choice to capture both smaller and larger particles. Besides, with excellent compatibility, our filter is suitable for corrosion, acid and organic solvents.
The designed diameter of Filson PES syringe filter ranges from 4mm to 50mm, and the sample volume can reach 200 ml. Therefore, our PES membrane syringe filter can meet your both small- and large-volume sample filtration.
Having more than 20 years on manufacturing filters, Filson possesses professional engineering team, advance technology and mature production lines. For this reason, we can provide you not only high-quality Filson PES syringe filter, but standard replacement syringe filter of Pall, Corning or other leading brands.
More importantly, if you are looking for customized PES syringe filter, please give us a call at +86-157 3695 8886 or send us an email at sales@filsonfilters.com immediately. Filson promises to provide you high-quality products with an economical price.

- Raw Material: polysulfones(PES)
- Housing Material: polypropylene(PP), acrylic
- Pore Size: 0.05 – 10 micron(typically 0.2 and 0.45 micron)
- Common Diameter: 13mm, 25mm, 30mm, 50mm
- Common Thickness: 110 – 150 micron
- Surface Area: up to 19.8 cm2
- Hold-up Volume: <120 µL
- Minimum Bubble Point: 200kPa
- Connection: FLL, MLL, stepped barb, hose barb
- MOQ: 100 PCs

As a professional syringe filter manufacturer, you can also find replacement PES syringe filters of various leading brands:
- Millipore
- Membrane solutions
- Pall
- Whatman
- Hawach
- Sterlitech
- Thermo Scientific
- Corning
PES Syringe Filter Applications

Filson PES syringe filter has passed the IC certification. It can remove the interfering substances and impurities in chromatographic analysis samples, ensure the reliability and consistency of analysis results, and avoid precision instruments are worn or blocked.

With precise aperture as small as 0.22 microns, it can sterilize culture medium, serum, etc. Filson PES syringe filter has inherent hydrophilicity to realize huge liquid throughput, even the most viscous protein solution can be sterilized or clarified with high flow rate.

All materials of Filson PES syringe filter are purchased from reliable foreign suppliers, meet multiple ISO certifications and food contact requirements. It provides high flow rate while maintaining high filtration efficiency, improving food safety and production efficiency.

The pharmaceutical field is exposed to a variety of chemicals. Filson PES syringe filter has wide PH range of 1-14 and is compatible with most acid or bases. Its maximum operating temperature is up to 90℃, without producing harmful substances in thermal environment.

Designed with female luer lock entrance and male luer slip outlet, Filson PES syringe filter is easy to connected with syringe, perfusion tube and other medical equipment. Its filtration efficiency is up to 99.99%, effectively removing the vast majority of harmful impurities in liquid.

Being capable to capture bacteria, mold and other useless microorganisms, Filson PES syringe filter can highly purify cell samples and culture media additives. It is strictly sterilized by autoclaved, EtO or gamma-ray radiation method to avoid contaminating samples.

Filson PES syringe filter has light weight, low retention and large filtration area, which is very convenient to filter samples for chromatographic analysis and other laboratory liquids. With good sealing without any adhesive, our PES syringe filter has no leakage during operation.

To avoid interference in sterilization of biological fluids, the filters must have extremely low protein-binding capability, and our PES syringe filter perfectly fits the requirement. It was fabricated and packaged in 100,000 grade clean rooms and achieved 100% sterility.

With high purity materials and standard production processes, Filson PES syringe filter is high level for applications in life sciences. Its multiple diameters can meet a variety of filtering needs in life science, high quality PES membrane and robust PP housing extend service life.
PES Syringe Filter FAQ Guide
PES membrane filter contains high-quality PES membrane, polypropylene housing and proper connector. Since most PES membrane is hydrophilic, PES membrane filter is ideal for capturing bacteria, fungi or other fine particles in most aqueous solutions. And it can be widely used in HPLC/IC/GC sample preparation, laboratory filtration, etc.
PES(polyethersulfone) membrane is mainly hydrophilic, and it is compatible with aqueous solutions better. While PVDF(polyvinylidene fluoride) membrane is mainly hydrophobic, therefore it is best suitable for air and gases filtration.
PES polymer/polyethersulfone is an transparent, amorphous and pale amber high-performance thermoplastic. It has high temperature resistance, better stability and strong mechanical strength. Besides, PES polymer can also work normally under high heat, high oxidation, alkali or electric environment.
PES polymer can be widely used in membrane filter industry, electrical equipment or fuel cell, food service industry, etc.
Yes. PES syringe filters may still be used after passing expiration date, but we cannot ensure whether they are sterile or not. Therefore, the expired filters had better be sterilized by autoclaving or gamma irradiation for using.
However, if you use PES syringe filter in laboratory or other critical industry, pay attention to the expiration date and do not use it with a damaged or broken package.
Used in lateral flow assays, membrane with high protein binding affinity is the best choice. While since PES membrane has lower protein binding capacity, PES membrane filters are not suitable for lateral flow applications.