Filson Capsule Filter: Cleaner, Faster, Easier Liquid & Gas Filtration Tools

In strict accordance with the ISO9001 quality system certification standards and using superior raw materials, Filson capsule filter has extensive types and unmatched performance.

  • Disposable products to replace and use conveniently
  • Huge dirt holding capacity effectively extends service life
  • Excellent particle retention capability at high flow rates
  • Thermal bonding technology, 100% seal without leakage
  • Strict sterilization processes ensure high-degree of sterility

What is Capsule Filter?

Composed of capsule type PP or thermoplastic housing and filter membrane, Filson capsule filter has strong construction and excellent properties. Its filter medias include nylon, PES, PTFE, activated carbon, glass fiber, etc., and you can choose the most appropriate one.

With compact structure, excellent flow rate, high chemical compatibility and excellent filtration efficiency, Filson capsule filter has become a popular choice for filtration applications. It also underwent rigorous sterilization procedures and testing to ensure that the product is qualified.

Filson capsule filter is suitable for the filtration of a variety of liquids and gases, including organic solvents, acids and bases, compression of air nitrogen, etc. It is widely used in pharmaceutical, food and beverage, electronics, water treatment and other fields.

Capsule Filter Types by Forms

Depth Filter Capsules

With the minimum aperture of 0.1 micron, Filson deep filter capsules have the ability to remove bacteria, mold and other microorganisms in liquids. They were subjected to rigorous sterilization processes like autoclaving and gamma irradiation to avoid contaminating samples.

HEPA Capsule Filter

The filtration media of Filson HEPA capsule filter is tightly woven fiber, designing to capture and remove airborne extremely small particles like dust, pollen, spores, smog, etc. The filter efficiency of our filter is usually up to 99.97%, which can effectively purify pollutants in air.

As the name implies, the filter medium of Filson pleated capsule filter is designed as uniform and dense fold, with the aim to provide as much filter area as possible in limited space. It allows fluids or gases to pass at high flow rate, effectively improving the working efficiency.

Capsule Filter Types by Filtration Membrane (7)

  • PES Capsule Filter
    Using hydrophilic PES as filtration membrane, Filson PES capsule filter is compatible with multiple chemicals and has low extractable. It is able to effectively remove microorganisms and fine particles from liquid, is suitable for pharmaceuticals and biotechnology applications.
  • PTFE Capsule Filter
    Filson PTFE capsule filter has excellent chemical inertness, high temperature resistance and hydrophobicity, making it ideal for filtering corrosive solvents and high temperature gases. It also has uniform aperture distribution and precise pore size to ensure accurate filtration.
  • Carbon Capsule Filter
    With a large number of activated carbon particles filling in the capsule housing, the effective filter area of Filson carbon capsule filter can reach up to 7m². Its pores can absorb a variety of pollutants, including odors, smoke, dust, impurities in liquid, and organic compounds.
  • Nylon Capsule Filter
    Since the nylon membrane is naturally hydrophilic, Filson nylon capsule filter allows fast liquid flow rate. Its rugged housing and support layer improve the mechanical strength, and is designed with wide aperture range from 0.1μm to 10μm to capture particles of different sizes.
  • PVDF Capsule Filter
    Having high chemical compatibility and thermal stability, Filson PVDF capsule filter can be used in harsh environments such as high temperature and corrosion. It also has low protein binding capacity, which is suitable for biological samples, and has high sample reduction rate.
  • Glass Fiber Capsule Filter
    Filson glass fiber capsule filter has huge dirt holding capacity and will not be blocked after long time use. It is suitable for high-temperature applications, and can be also used to effectively filter high viscosity solutions or for pre-filtration, clarification, sterilization of various fluids.
  • Polypropylene Capsule Filter
    Made from PP material, Filson polypropylene capsule filter is non-toxic and can be widely used in the food&beverage industry, pharmaceutical industry and water treatment, etc. It is easy to install, has reduced pressure, and the dense pleated design maximizes the filter area.

Filson Capsule Filter Benefits

Accurate Aperture

With advanced production equipment, the pore size of Filson capsule filter is very standard and uniform, which can accurately capture pollutants with corresponding size.

Good Sealing

Adapting advanced thermal bonding technique, Filson capsule filter achieves 100% seal without leakage, it doesn’t have any adhesive to avoid contaminating the sample.

Stable Structure

The housing of Filson capsule filter is made of high purity PP or other thermoplastic, with high mechanical strength and good thermal stability, providing strong support.

Efficient Filtration

The minimum pore size of Filson capsule filter is as low as 0.1μm, and has the ability to capture tiny particles in liquids or gases with filtration efficiency of more than 99.9%.

Advantages of Filson Capsule Filter

  • Convenience: Filson capsule filter has simple structure and easy to operate, it can form a continuous sample filter channel by connecting the outlet and inlet to catheters respectively. It is disposable and replaced directly without cleaning.
  • Flexibility: Filson capsule filter is available in extensive sizes and materials, which makes it suitable for many applications. It can be used for filtration of liquids, gases and can be customized to meet the specific filtration requirements.
  • Sterility: Owing to capsule filter will be used in the field of sterile filtration, Filson will go through rigorous sterilization process. We have strict sterilization methods, like autoclaving and gamma-ray irradiation, to avoid polluting samples.

Features of Filson Capsule Filter

  • Reliable quality by passing ISO9001 and CE certifications
  • Excellent throughput and particulate retention performance
  • Robust housing and support structure to resistant high pressure
  • Available with both hydrophilic and hydrophobic filtration membrane
  • Multiple size threaded interfaces to connecttightly with catheter
  • Outstanding chemical corrosion resistance and thermal stability
  • Weak protein binding capacity to maximize reduction sample
  • Compact design and portable size to be used in small space
  • Disposable use reduces the risk of cross-contamination
  • Wide materials and dimensions to meet various requirements
  • Supportive to customized production according to your system

Why Choose Filson Capsule Filter

Specialized in filter design and production for more than 20 years, Filson has extensive experience and advanced equipment. We offer full range of capsule filters in a variety of materials and sizes, and you can always find the ideal one in Filson.

For customer satisfaction and the long-term development of company, Filson always puts product quality and performance first. We use high-quality raw materials, through strict production processes and multiple inspection processes, to ensure that every product is flawless.

Filson is an OEM factory, responsible for the product design, production, packaging and delivery processes, so we always set ex-factory price for products. Both reliable quality and affordable price to provide you with high cost performance.

If you are interested in Filson’ filter products, please contact us for more information, we always welcome your news and will try to satisfy you. Contact Filson by phone +86-157 3695 8886 or

  • Filter Medias: PES, PTFE, PVDF, PP, nylon, glass fiber, activated carbon, etc.
  • Housing Material: polypropylene or or other thermoplastics
  • Diameter: 2.5 inches to 6 inches
  • Filter Area: 0.025 m² to 0.73 m²
  • Working Temperature Range: 40℃ to 88℃
  • Working Pressure Range: 3 bar to 10 bar
  • Filtration Efficiency: more than 99.9%
  • Filtration Accuracy: 0.1 micron to 50 microns
  • Length: 5 inches to 30 inches, or customized
  • Connection Methods: luer lock, hose barb, or threaded connection

Filson offers other brands of alternative capsule filters. We have the same specifications and performance as the original brand products or even superior, and the price is more competitive. The followings are the alternative capsule filter brands:

  • Pall capsule filter
  • Whatman capsule filter
  • Zenpure capsule filter
  • Sartofluor 2 capsule filter
  • Cobetter capsule filter
  • Mdi capsule filter

Applications of Capsule Filter

Pharmaceutical Industry

With precise pore size as low as 0.1μm, Filson capsule filter can be used to remove contaminants, bacteria and particles in bio-pharmaceutical application. It has passes strict sterilization process, and the 100% sterility meets high cleanliness requirements in pharmaceutical industry.

Inkjet Application

By connecting to inkjet system to filter ink, it captures most of the insoluble pigments, particles and other impurities in the ink, effectively protecting the print head and extending services life of the printer. Its compact shape also minimizes to reduce the waste of internal ink.


Filson capsule filter has multiples filter medias to choose from, among which the hydrophobic filter membrane is particularly suitable for gas purification in electronics manufacturing industry. It has precise and evenly distributed pore size and the filtration efficiency is more than 99.9%.

Water Treatment

Filson carbon capsule filter is extremely suitable for water treatment area. Its PP housing interior is a large number of activated carbon particles, and the total filtration area of up to 7 m², can not only filter the particle impurities in water, but also can purify the odor and color.

Due to Filson is very strict with the selection of materials, our materials are all premium and harmless, reaching the level of direct contact with food. Our capsule filters can be used in the food and beverage industry. Glass fiber filter film can filter high viscosity solutions such as syrup.

Chemical Industry

Having excellent corrosion resistance and thermal stability, Filson capsule filter is capable of filtering chemical solvents such as acid and base. It has low extracts to avoid contamination of the solvent, and allows for high liquid / gas flow rate.

Filson : Your Trusted Multifunctional Capsule Filter Designer and Supplier

Filson capsule filter comes in comprehensive types, a wide variety of sizes, excellent performance and affordable price. Choose Filson, we guarantee you will be satisfied!

Capsule Filter FAQ Guide

What Types of Applications are Capsule Filter Commonly Used for?

What Types of Applications are Capsule Filter Commonly Used for

Capsule filter is commonly used in a wide range of applications, including bio-pharmaceuticals, food and beverage, laboratory research, and electronics manufacturing. It is particularly useful in applications where small batches of fluids need to be filtered quickly and efficiently.

How Do I Choose the Right Capsule Filter for My Application?

When selecting a capsule filter, it is important to consider factors such as the type and size of particles you need to remove, the flow rate of the fluid, and the compatibility of the filter materials with the fluid being filtered.

You should also consider the operating conditions of your application, such as the temperature and pressure, and select a filter that is designed to handle these conditions. You can also Click Here to contact our professional staff for consultation, and we will serve you wholeheartedly.

How often Do I Need to Replace My Capsule Filter?

How often Do I Need to Replace My Capsule Filter

The frequency with which you need to replace your capsule filter will depend on a variety of factors, including the volume and composition of the fluid being filtered, the level of filtration efficiency required, and the operating conditions of your application.

As a general rule, it is recommended that capsule filter SHOULD be replaced when the differential pressure across the filter element reaches a specified level, or after a set number of filtration cycles.

Can Capsule Filter be Sterilized for Use in Bio-Pharmaceutical Applications?

Can Capsule Filter be Sterilized for Use in Bio-Pharmaceutical Applications

Yes, many capsule filters are designed to be sterilized using various methods, including steam sterilization, gamma irradiation, or chemical sterilization. It is important to select a filter that is compatible with your chosen sterilization method to ensure effective sterilization and maintain the integrity of the filter.

Are Capsule Filter Reusable or Disposable?

Are Capsule Filter Reusable or Disposable

Most capsule filters are designed to be disposable and are intended for single use only. However, there are some reusable capsule filters available on the market that can be cleaned and sterilized for multiple uses. It is important to carefully read the manufacturer’s instructions and specifications to determine if a capsule filter is reusable or disposable.

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