top of page



In response to the growing demand for quality assurance, education, and recognition of professional skills within liquid filtration and separation, WFI developed the Certified Liquid Filtration & Separation Specialist (CLFSS) program, the filtration & separation education and certification program designed specifically for liquid filtration & separation professionals. When purchasing products or services from a Liquid Filtration & Separation Specialist, customers are to be assured that their particular requirements and needs will be addressed by the certified professionals.

The CLFSS program distinguishes those professionals who have demonstrated comprehensive, up-to-date understanding of liquid filtration & separation technologies, and high levels of professionalism. To be certified, a liquid filtration & separation professional must pass the examination on the principles, methods, general technologies and applications of liquid filtration & separation. Candidates for certification are also subject to compliance with the WFI Code of Ethics.

Register Now as Non Member

Please send email to to request coupon code for WFI members.

Required Courses

Introduction to Global Filtration Market

From the air we breath, to the water we drink, filtration has affected almost all the aspects of our daily life. This course aims to provide an introduction to filtration and an overall understanding of the global market and various applications directly related with environmental protection, clean energy, health living, equipment protection, and advance of new technologies. Course Outline 1. Introduction to Filtration 2. Drivers for Continuous Growth 3. Air Filtration Market 4. Liquid Filtration Market 5. Trends and Opportunities

Solid/Liquid Filtration

This course is to introduce the basics of liquid filtration from industrial application perspective. Practical information and examples will be used to relate to fundamentals. It is designed for people who are new to the filtration industry either in technical, sales, or business functions. It is also a very good course for those who have been in this industry for a while to get a better understandings of correlating fundamentals to practical applications. Course Outline 1. Introduction 2. Particles and Liquid Properties 3. Principles of Solid/Liquid Separation 4. Liquid Filtration Media 5. Pretreatment 6. Equipment & Testing Methods

Solid/Liquid Separation

This course continues above course and focus on solid/liquid separation without a filter medium Course Outline 5. Separation Equipment & Testing Methods 6. Pretreatment

Filter Media Technologies

Filter media technology is the core and competitive edge of modern filtration technologies. From nonwovens, membranes, ceramics, metallics, adsorbents, wovens, to nanofibers and other porous materials, this course aims to provide you an overall understanding of the filter media market and products used in various areas of air and liquid filtration. Emerging technologies, challenges and trends for future development will also be discussed. Course Outline 1. Introduction to the filtration market 2. Key market segments in air/liquid filtration 3. Common filter media types 4. Market statistics and opportunities 5. Filter media technologies for air filtration 6. Filter media technologies for liquid filtration 7. Characteristics and requirements of filter media 8. Things to consider for filter media selection 9. New developments in air/liquid filter media 10. Unmet needs and trends for future development

Liquid Filter Evaluation and Testing Methods

This is a course designed specially for liquid filter product evalucation and industrial standard test methods, an introductory course on liquid filtration testing, testing methods and the standard equipment and instruments used. The course will cover filter test techniques and standards for water, fuel, lube oil, hydraulic fluids, and other industrial liquids. In addition, particle characteristics, efficiency methods and ratings will also be reviewed. 1. Fundamental of liquid filter testing 2. Particle characteristics and liquid filter rating 3. Liquid filter testing and standards 4. New developments in liquid filter testing

bottom of page