DESCHEM PTFESS9050-0.22UM Hydrophobic Ptfe Membrane Filter 90MM Od 9CM Polytetrafluoro

( Brand: Deschem ), ( Manufacturer Part Number: PTFESS9050-0.22UM ), ( Part Type: Filter ), ( Size: 0.22um )

Review DESCHEM 90mm 0.22um Hydrophobic Ptfe Membrane Filter Od 9cm Made From Polytetrafluoro

The **Deschem PTFESS9050-0.22 m 90mm (9cm) Hydrophobic PTFE Membrane Filter** is a high-performance, precision-engineered filtration solution designed for demanding laboratory and industrial applications where uncompromising purity, durability, and chemical resistance are essential. Crafted from **polytetrafluoroethylene (PTFE)**, a synthetic fluoropolymer renowned for its exceptional inertness, thermal stability, and non-reactive properties, this membrane filter delivers superior filtration efficiency while maintaining structural integrity across a broad spectrum of operating conditions. With a **nominal pore size of 0.22 micrometers**, it provides reliable retention of bacteria, fine particulates, and submicron contaminants, making it an ideal choice for sterile filtration in pharmaceutical, biotechnology, and life sciences applications. The **hydrophobic nature** of the PTFE material ensures effective separation of aqueous and organic phases, preventing wetting and maintaining consistent flow rates even under high-pressure conditions, which is particularly advantageous in processes involving volatile solvents or aggressive chemicals.

Constructed from a **90mm (9cm) diameter** filter element, this membrane offers a generous surface area for enhanced throughput and extended filter life, reducing operational downtime and replacement frequency. The **rigid, non-fibrous PTFE structure** ensures dimensional stability, minimizing deformation during filtration and maintaining consistent pore uniformity, which is critical for achieving reproducible results in critical applications such as cell culture media sterilization, vaccine production, and the preparation of injectable drugs. Additionally, the filter s **low protein-binding affinity** and resistance to microbial colonization further enhance its suitability for sterile filtration tasks, where contamination risks must be minimized. Whether used in **vacuum filtration, pressure filtration, or dead-end filtration systems**, the PTFESS9050 excels in maintaining high flux rates while delivering exceptional clarity to filtrates, making it a versatile tool for laboratories and manufacturing environments where precision and reliability are non-negotiable.

Beyond its technical superiority, this membrane filter adheres to stringent quality standards, ensuring compliance with regulatory requirements such as **ISO 846, USP , and ASTM F388**, which validate its performance in sterile filtration applications. Its compatibility with a wide range of solvents, acids, and bases including strong oxidizing agents makes it a dependable choice for processes involving harsh chemicals, where conventional cellulose or nylon filters would degrade or leach contaminants. The filter s **sterilizable design** allows for repeated use in controlled environments, provided it is properly cleaned and validated, further optimizing cost efficiency without compromising sterility. Whether integrated into **filtration systems for water purification, gas analysis, or high-purity liquid processing**, the Deschem PTFESS9050-0.22 m filter represents a pinnacle of filtration technology, combining robustness, chemical resistance, and unmatched filtration accuracy to meet the most stringent industry demands.

**Pros and Cons of buying a Deschem PTFESS9050 (0.22 m, 90 mm Hydrophobic PTFE Membrane Filter)**

### **Pros**

1. **High Purity and Sterility** The 0.22 m pore size effectively removes bacteria, fungi, and most viruses, making it ideal for sterile filtration in pharmaceutical, biotech, and laboratory applications.

2. **Hydrophobic Properties** PTFE (polytetrafluoroethylene) is naturally hydrophobic, meaning it repels water and aqueous solutions, reducing wetting issues during filtration.

3. **Chemical Resistance** PTFE is highly resistant to most chemicals, solvents, and extreme pH conditions, making it suitable for aggressive filtration processes.

4. **High Flow Rate** PTFE membranes generally offer good flow rates compared to other materials like PES or nylon, reducing processing time.

5. **Reusable (Under Certain Conditions)** Unlike disposable filters, PTFE membranes can sometimes be cleaned and reused (if sterilized properly), though this depends on the application.

6. **Compatibility with Autoclaving** Many PTFE filters can withstand autoclaving, allowing for repeated sterilization cycles.

7. **Low Protein Binding** PTFE has minimal protein adsorption, which is beneficial for biological and pharmaceutical filtrations where protein integrity is critical.

8. **Durability** PTFE is a robust material that maintains structural integrity under pressure and repeated use.

9. **Regulatory Compliance** Suitable for industries requiring strict adherence to standards like USP, EP, or FDA guidelines.

10. **Wide Temperature Range** Can operate effectively across a broad temperature spectrum, from cryogenic to high-temperature applications.

### **Cons**

1. **Cost** PTFE filters are generally more expensive than alternatives like PES or nylon due to material and manufacturing costs.

2. **Limited Solvent Compatibility** While PTFE resists many chemicals, some highly polar or aggressive solvents may still degrade or swell the membrane over time.

3. **Potential for Extractables/Leachables** Like all filtration materials, PTFE may release trace contaminants under certain conditions, requiring validation in sensitive applications.

4. **Lower Mechanical Strength** Compared to some other materials, PTFE can be more brittle and may require careful handling to avoid damage.

5. **Potential for Membrane Blocking** If not pre-filtered properly, large particles or high concentrations of solutes can clog the membrane, reducing efficiency.

6. **Limited Availability of Custom Sizes** Standard sizes (like 90 mm) are common, but specialized or non-standard sizes may be harder to source.

7. **Maintenance Requirements** Reusable filters require thorough cleaning and sterilization, adding operational complexity.

8. **Environmental Impact** PTFE production involves perfluorooctane sulfonic acid (PFOS) and other persistent chemicals, raising sustainability concerns (though modern manufacturing has reduced this).

9. **Potential for Delamination** Over time or with improper handling, the membrane layers may separate, compromising performance.

10. **Not Ideal for All Applications** For very low-pressure or high-volume applications, other materials (e.g., PES) may be more cost-effective or efficient.

### **Conclusion**

The **Deschem PTFESS9050 (0.22 m hydrophobic PTFE membrane filter)** is a high-quality, chemically resistant, and sterile filtration solution best suited for demanding applications in pharmaceuticals, biotechnology, and laboratories where purity, chemical compatibility, and durability are critical. Its advantages in sterility, chemical resistance, and reusability (under controlled conditions) outweigh its higher cost and potential maintenance requirements for most sterile filtration needs.

However, if budget constraints or specific solvent compatibility issues are concerns, alternatives like **PES or nylon filters** may be more appropriate. For applications requiring **ultra-high purity, chemical resistance, and reusability**, PTFE remains a superior choice despite its higher price.

### **Recommendation**

- You require **sterile filtration (0.22 m) for pharmaceuticals, biologics, or sensitive laboratory work**.

- Your process involves **aggressive chemicals, solvents, or high temperatures** that other membranes cannot handle.

- You need **reusable or autoclavable filters** with minimal protein binding.

- **Cost is not the primary concern**, and the long-term benefits (durability, chemical resistance) justify the investment.

- Your application is **low-cost, high-volume**, and does not require PTFE s chemical resistance.

- You are working with **polar solvents or conditions** where PTFE s hydrophobic nature could be a drawback.

- **Budget constraints** make PTFE prohibitively expensive without clear justification.

For most sterile filtration tasks in regulated industries, this PTFE filter is a **strong, reliable choice** when properly validated for your specific application. Always conduct **compatibility testing** with your solvents and process conditions before full-scale use.

Details:

Pore Size 0.22um. Diameter is 90mm. However, this will not affect the shipping times.: Deschem 90mm,Hydrophobic PTFE Membrane Filter,Made By Polytetrafluoro ethylene,50Pcs/Pack.

Brand New 90mm 0.22um Hydrophobic PTFE Membrane Filter,OD 9CM,Made from Polytetrafluoro ethylene,50 Sheet/Box, Manufacturer model: PTFESS9050-0.22um Brand: Deschem. Country/Region of Manufacture: China.

part #: ptfess9050022um prices

• $23.39-$89.56

specifications filtecam:

• brand: Deschem
• mpn: Ptfess9050-0.22um
• part type: Filter
• size: 0.22um

offer filtecam:

• options: Ship-to-home
• quantity: 4
• started: March 22, 2026
• availability: In Stock
• sold: 0

general filtecam:

• Cameras Photo > Lenses Filters > Filters
• condition: New

shipping filtecam:

• class: Standard
• type: Fixed
• transit: 3-6 Days
• cost: $0.00
• service: Standard

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seller filtecam:

• rating: 99.0%
• # reviews: 10251
• city: Within USA

returns filtecam:

• policy: Returns Accepted
• paid by: Seller
• method: Money back
• time: 30 Days

Deschem PTFESS9050-0.22UM Is Similar To:

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