ETM Filters 

For fine particle removal in process gas and non-aqueous liquids

  • Compressed Air
  • Pressurized Gases
  • Non-Aqueous Chemicals
  • Solvents
  • Tank Ventilation
Features and Benefits

PTFEETM Filters are a family of Polytetrafluoroethylene (PTFE) membrane products.



  • Resistant to virtually all chemicals
  • Can be ordered pre-wetted with water for use in aqueous solutions
  • Pore sizes range from 0.05 to 5.0 microns 
Filtration Area

ETM filtration area

For the following product information, click on the datasheet below:
  • Integrity test specifications
  • Flow rates for all pore sizes
  • Materials of construction
  • Operating parameters
  • Sanitization and sterilization
  • Regulatory & compliance

ETM Filters

ETM/HA Filters

ETM/HT Filters

Quality Assurance

ETM filters are 100% integrity tested. CPF filters are developed and manufactured under an ISO 9001:2015 certified Quality Management System and designed to be used in cGMP-compliant processes. 

Black and white cartridge etched logo-png-2ETM Cartridges 

Available from 5-40 inches in length with several end connections and O-ring options. For applications using elevated temperatures,  ETM/HT Cartridges can be used in air/gas processes up to 221°F and in water processes up to 203°F. 

ETM cartridge flowcharts water and air

Black and white capsule etched logo-pngETM Capsules

These filters are ETM cartridges encapsulated in a polypropylene shell to minimize exposure to process fluids. Sizes range from 2-30 inches in length. 

ETM Capsule flowcharts water and air


Why Choose Critical Process Filters?

Quality & Performance
  • Over 20 years of engineering and manufacturing the finest filters for critical applications. 
  • Compliance with industry standards required for your operation
  • Product optimization to meet your performance goals
  • ISO 9001:2015 certified Quality Management System
  • Appropriately rated clean room environment
  • Proven success in electronics and high purity chemical applications
Price Advantage

It's simple. Our products are very competitively priced. Learn more

Services & Support
  • Presales evaluations/recommendations by highly experienced Application Engineers 
  • Post sales support and trouble shooting
  • Testing & Analysis services (our site or yours)
  • Validation Services

Made in USA 800   90012015Large-(1)

Let's start a conversation today!

See our Privacy Policy.