33mm PES Hydrophilic Filters for Medical or Lab Use with Luer Connectors

Brand Name:NO
Certification:ISO9001
Model Number:XN-HF33
Minimum Order Quantity:50000 pieces
Delivery Time:15 to 30 days
Payment Terms:L/C, T/T
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Location: Taizhou Zhejiang China
Address: Huangnikan Industry Zone, Yucheng Street, Yuhuan, Taizhou City, Zhejiang Prov., China.
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Product Details

5 Micron Injection Disc Filter with standard Luer Lock Connections

This Medical-grade filter device consists of a 33mm diameter housing and high-quality hydrophilic PES membranes with sterilization grade pore size of 0.22µm.


The PES Hydrophilic Filter is a versatile consumable for life science, biotech labs and healthcare settings. Its design balances sterility (0.22 µm), efficiency (high flow rate via hydrophilicity), and sample preservation ((low protein adsorption)—making it the preferred choice for critical applications where contaminants, sterility, or protein recovery are top priorities.


Specifications


Membrane MaterialPolyethersulfone (PES)

A high-performance synthetic polymer chosen for its chemical resistance (to acids, bases, and organic solvents), thermal stability (withstands repeated autoclaving), and biocompatibility—critical for medical/life science use.


Housing Diameter33 mm

Typical size for small-scale filtration systems.


Pore Size0.22 µm

The gold standard for sterile filtration—effectively retains bacteria (most bacteria range from 0.5–5 µm), endotoxins, and larger microparticles while allowing liquids (buffers, media) and small molecules to pass. Compliant with regulatory requirements for sterility in pharmaceutical, biotech, and clinical settings.


Surface PropertyHydrophilic

Engineered to optimize interaction with aqueous solutions (buffers, protein solutions, cell culture media).

Key benefits include:

*High flow rates: Minimizes pressure drop during filtration (no need for extensive pre-wetting, unlike hydrophobic membranes).

*Low protein adsorption: Prevents non-specific binding of proteins to the membrane, maximizing recovery of target proteins (e.g., monoclonal antibodies, enzymes) and reducing fouling (which extends filter lifespan).

*Easy integration: Works seamlessly with aqueous workflows without requiring additional surfactants or modifications.


Connector DesignLuer lock

With ISO 9001 certificated, the PES filters have a design of double luer lock, providing a secure and leak-free connection during filtration processes.



Recommended Applications


1. Microparticulate Filtration

Removes unintended tiny particles (e.g., dust, glass shards, cellular debris, aggregated proteins) from liquids. The 0.22 µm pore size ensures consistent removal of particles down to the minimum required for sterility or clarity. Useful for preparing reagents, buffers, or media free of contaminants that could interfere with experiments or damage equipment.


2. Buffer Filtration

Buffers are foundational in assays, electrophoresis, and protein studies. The hydrophilic surface ensures fast flow rates (critical for high-throughput labs) and minimal loss of buffer components via adsorption. Sterile filtration (0.22 µm) also eliminates microbial contaminants that could degrade the buffer over time.


3. Protein Filtration

Proteins are highly sensitive to adsorption onto surfaces, which leads to reduced yield and purity. The hydrophilic PES membrane’s low protein-binding property preserves protein integrity and function—essential for downstream applications like mass spectrometry, crystallography, or therapeutic production. The 0.22 µm pore size also removes bacterial contaminants from protein solutions without altering the protein itself.


4. Medium Filtration

Cell culture media (e.g., DMEM, RPMI) must be sterile to prevent microbial growth that could kill or contaminate cell lines. The 0.22 µm pore size provides reliable sterilization, while the hydrophilic surface enables rapid filtration of viscous media (reducing processing time and shear stress on sensitive nutrients). Low protein adsorption also prevents loss of serum proteins (e.g., fetal bovine serum) added to the media.




China 33mm PES Hydrophilic Filters for Medical or Lab Use with Luer Connectors supplier

33mm PES Hydrophilic Filters for Medical or Lab Use with Luer Connectors

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