Conference Speakers

AllenHarry Allen Vice President of Sales and Marketing at AllergyZone, LLC

Clean Air Best Practice in Commercial Buildings and Other Facilities

Harry Allen is Vice President of Sales and Marketing at AllergyZone, LLC, a privately owned company in Louisville, KY with a focus on providing breathing solutions that bring relief to people, especially those who suffer from allergy and asthma symptoms, through scientifically developed products that create a healthier personal environment and improved air quality.  He has been a member of the National Air Filtration Association (NAFA) and has served on numerous Committees and Task Groups.  Harry is a NAFA Certified Air Filtration Specialist (CAFS), Treasurer of NAFA and a member of NAFA’s Executive Board.    His involvement in the air filtration industry spans 33 years, having worked for several filter manufacturing companies, primarily in a Sales and Marketing capacity.  Harry’s experience includes working with leading HVAC equipment manufacturers as well as air filtration for residential, commercial and industrial HVAC applications.  When not working, Harry enjoys spending time with his family and four grand children, golf and college athletics, especially football and basketball.  


BhatGajanan S. Bhat Professor - Materials Science and Engineering Director - UTNRL

Meltblown Submicron Fibers for Tomorrow’s Sustainable Filter Media

After earning his MS and Ph.D. from Georgia Tech in textile and polymer engineering, Dr. Bhat accepted a position at Image Carpets, Rome, GA where he helped improve the process of converting recycled PET into fibers for carpets. He then joined the University of Tennessee, in August 1990, where his research covers nonwovens - melt blown, spunbonded and biodegradable, plastics recycling, sustainable materials, and high performance fibers.  He has also conducted research at Edwards Air Force Base, CA on specialty fibers, and NASA/MSFC on multifunctional composites. As the director of the University of Tennessee Nonwovens Research laboratory (UTNRL) he has focused on production of nanofibers from thermoplastic polymers by the meltblowing process. In addition to mentoring several masters and doctoral students, Dr. Bhat has published about 200 papers and has three US Patents.  In recognition of his achievements, he was inducted as an Outstanding Young Engineering Alumni by the College of Engineering at Georgia Tech in 1996; received the Distinguished Achievement Award from the Fiber Society in 1999; in 2005, he was elected as a Fellow of the Textile Institute, and in 2008, he received the TechniTex India Research Achievement Award. He has served as the president of the Fiber Society and is an active member of INDA, TAPPI and the Textile Institute.


BurkheadRobert Burkhead President, Blue Heaven Technologies

Filtration Performance Assessment “In Situ”

Work Experience:
Blue Heaven Technologies
(Environmental Services industry)
Currently holds this position

Manager, Filter Converting Operations
Freudenberg Nonwovens
(Privately Held; Textiles industry)
September 1992 — September 2002 (10 years 1 month)
Accountable for all filtration products engineering and manufacturing operations for the US filtration businesses. Managed the product research and development for HVAC, industrial process and automotive applictations as well as process development and all production activities.

Product and Project Engineer
AAF International
(Privately Held; Consumer Goods industry)
August 1977 — August 1992 (15 years 1 month)
Various engineering assignments in product, process and project initiatives for air filtration applications. Duties involved basic research for raw materials and the attainment of product performance development goals. Also managed the production process development and implementation projects on a series of new products over a 15 year period.

Western Kentucky University
1973 — 1977

deSegoviaMarisa Jiménez de Segovia Presiden, Air-Care de Mexico

The Technology of Clean Air (Spanish version)

Socia fundadora  de Air-Care de México, empresa mexicana fundada en 1992, líder en el cuidado de la Calidad del Aire Interior, limpieza de ductos y filtracion del aire.  Certificada como Especialista en Filtros para Aire (CAFS) y Técnico Certificado (NCT) por NAFA,  Certificada como Especialista en Limpieza de Sistemas de Aire (ASCS) por National Air Duct Cleaners Association (NADCA) y Certificada como Consultora en Control de Infecciones Medioambientales por el Consejo Americano de Certificación Acreditada (ACAC) . Ha impartido diversos seminarios y cursos relacionados con el tema de la filtración y la calidad del aire interior en México y USA.  Ex Presidente de National Air Filtration Association con sede en Virginia Beach y Ex –Presidente de ASHRAE Capítulo Monterrey.  

20 years of experience in air duct cleaning, air filtration and indoor air quality. Marisa is a NADCA Certified Air Systems Cleaning Specialist, a NAFA Certified Air Filter Specialist and a NAFA Certified Technician. She is also  a Council Certified Environmental Infection Control Consultant by the American Council for Accredited Certification. She has been a speaker and has given presentations in  Mexico and in the  United States. Marisa is a Past-President of National Air Filtration Association and Past- President of ASHRAE Monterrey Chapter. Currently she is a member of the Board of Directors in NAFA and ASHRAE Monterrey Chapter.

DoucoureAbdoulaye “Ablo” Doucouré Senior research scientist,Hollingsworth & Vose

Relevance of Filtration Processes in Solid-liquid Separation

Abdoulaye “Ablo” Doucouré is a senior research scientist at Hollingsworth & Vose (H&V - Floyd, Virginia), a global manufacturer of engineered papers and non-woven materials for the filtration industry headquartered near Boston, MA. Before joining H&V’s Advanced Technology Group in January 2011, he had worked for twelve years in the membrane research division of Pall Corporation (Port Washington, NY) and held multiple functions involving the development of polymeric membranes for liquid filtration applications. Ablo Doucouré’s key contributions are in the field of liquid filtration processes, new membrane formation, thin film formulation and surface treatment of polymers. He conducted 2 years of post-doctoral fellowship in the Chemical Engineering Department of the University of Minnesota in 1996/97, and earned a doctorate in Materials Chemistry in 1995, from the university of Montpellier-2 (France). During the same year, he received a national distinction in science from the Marcel Bleunstein-Blanchet “Fondation pour la Vocation”. Dr Doucouré is the first inventor of a Pall Corporation patent and has written more than 25 technical publications. He co-founded the Mali Symposium on Applied Sciences (MSAS,, which is biannually held in West Africa since 2000. He has also been teaching membrane science courses at the “Faculté des Science & techniques de Bamako” in Mali since 2006.

KinzerKevin Kinzer Laboratory Manager, 3M

In-home vs. Lab-based Performance Testing of Residential HVAC Filters

29 years experience at 3M in technology development, consumer and industrial product development, along with both R&D and business management.

  • B.S. and M.S. degrees in Chem Eng. from U. of Notre Dame and U. of Texas, respectively

Over 20 U.S. and International issued patents

  • More than 17 years experience in air and water filtration technology

 Currently global lab head for the Filtrete brand residential air and water filtration product portfolio

KreuterDr. Andreas Kreuter Freudenberg Filtration Technologies KG

Trends in Automotive – Implications for Filtration

Dr. Kreuter has a Master Degree in Industrial Engineering from the University of Karlsruhe. He also has a Ph.D. in Business Administration from the University of Mannheim.

He has been with Freudenberg since 1997 and is currently the Managing Director and Speaker of the Management Board with Freudenberg Filtration Technologies. Weinheim, Germany.

Dr. Kreuter has been a member of the Baden-Badener Unternehmergespräche (BBUG) since 2006.  (BBUG is the leading German Entrepreneur Association)

He is fluent in German, English, Spanish and has basic knowledge of French and Portuguese.

KuehnThomas H. Kuehn, P.E.Professor Mechanical Engineering Department University of Minnesota

Effects of Temperature, Relative Humidity, and Air Flow on Microbial Growth on Loaded Ventilation Filters

1971 B.M.E. with high distinction, University of Minnesota
1973 M.S. University of Minnesota
1976 Ph.D. University of Minnesota

Honors and Awards
Pi Tau Sigma, Tau Beta Pi, Sigma Xi
Young Mechanical Engineer of the Year 1983, Minnesota ASME
Best Poster Awards, ASHRAE Meetings, Chicago, 1995 and San Antonio, 1996.
Fellow ASME, 1997
Fellow ASHRAE, 2004
Transactions Paper Award, ASHRAE, 2009

Academic Experience
1976-1981 Assistant Professor, Department of Mechanical Engineering, Iowa State University
1981-1983 Associate Professor, Department of Mechanical Engineering, Iowa State University
1983-1990 Associate Professor, Department of Mechanical Engineering, University of Minnesota
1990-present  Professor, Department of Mechanical Engineering, University of  Minnesota
1994-2000 Director of Graduate Studies, Mechanical and Industrial Engineering graduate programs, University of Minnesota
1997-2009 Director of Environmental Division, Department of Mechanical Engineering, University of Minnesota

Professional Certification
Registered Professional Mechanical Engineer, State of Minnesota No. 16505

Professional Society Membership
American Association for Aerosol Research
American Conference of Governmental Industrial Hygienists
American Society of Mechanical Engineers
American Society of Heating, Refrigerating and Air Conditioning Engineers
Gesellschaft für Aerosolforschung e.V.
Institute of Environmental Sciences & Technology

Recent Professional Activities
Member ASHRAE Conference and Expositions Committee, 2012 - present
Member ASHRAE Technical Council, 2008-2010
Member of ASHRAE Research Activities Committee, 2001 – 2005

LynchGerard J. Lynch, P.E. President International Filter Testing Services, Inc

Liquid Filter Testing Concepts and Techniques

Jerry has 30 years of experience in filtration testing, design engineering, and manufacturing operations. He has extensive experience in filtration and separation technologies and advanced testing techniques. Mr. Lynch is currently the President of IFTS International Filter Testing Services, Inc. in New Jersey. IFTS specializes in Filtration and Separation Science, Research and Testing. IFTS provides laboratory and consulting services to industry with locations in Europe and the USA and China. The management at IFTS has compiled a world class team of scientists, engineers and technicians in the field of Solid-Liquid Separation. Industry experience includes: automotive, aeronautical, biotechnology, chemical processing, hydraulic fluid power, environmental, medical device, and offshore marine and shipbuilding.

MurawskiJudith Murawski Industrial Hygienist, AFA-CWA, AFL-CIO

SOS to Filter Manufacturers: Oil-free Air in the Aircraft Cabin and Flight Deck

Judith Murawski has worked in the Air Safety, Health, and Security Department for the Association of Flight Attendants (AFA-CWA) labor union since 1999. She
won’t leave her position with AFA until the outside air on aircraft is properly filtered fleet-wide. Judith works primarily on chemical exposures hazards in the cabin and flight deck on commercial aircraft, including oil fumes, contaminated uniforms, and pesticides.  In her past life, she researched chemical exposure hazards in the pulp and paper industry. She has a Master of Science in Industrial Hygiene from the University of British Columbia and has been certified with the American Board of Industrial Hygiene since 2000. She lives in Seattle, but is looking forward to eating a real bagel in Philadelphia.  

RosenthalJim Rosenthal CEO, Tex-Air Filters

Indoor Air Quality (IAQ) With Air Filtration

Jim Rosenthal, Chairman and CEO of Tex-Air has a BA from the Colorado College, and a Master’s Degree from the University of Pittsburgh.  He also attended the Netherlands School of International Business.

  • Jim is Past President of the National Air Filtration Association (NAFA). 
  • Rosenthal has been involved with many professional, arts, civic and historical groups at the local and state level.  He currently serves as President of The Asthma and Allergy Foundation of America – Texas Chapter and the President of the Fort Worth Civil War Round Table.

Frequent contributor to publications and journals focusing on air filtration and indoor air quality.
Frequent presenter at conferences including RSES, NADCA, ACCA, ASHRAE (Mexico) and NAFA. 

Tex-Air Filters is a Fort Worth based manufacturer and marketer of air filters.  The company has been in business since 1974 and was moved to Fort Worth in 2001.  Tex-Air Filters produces and sells a full line of air filtration products and serves customers throughout Texas.  Customers include school districts, HVAC contractors, municipalities, apartments, universities, medical facilities, office buildings, industrial firms, churches and other large filter users.

  • Tex-Air Filters is a division of Air Relief Technologies, Inc and occupies 25,000 square feet of office, warehouse and manufacturing space at 5757 E. Rosedale in Fort Worth.  The company employs 52 people.

SandbergLeslye Sandberg President, Permatron

NAFA Guidelines, Texts, Accreditations and Other Resources for You to Use

Leslye Sandberg is President of Permatron, an OEM manufacturer of air filtration products since 1957. She developed a small family business into a nationally recognized manufacturer with several notable product brands and multiple product patents.  Permatron was awarded the 2011 Manufacturer of the Year from the Alliance for Illinois Manufacturing for financial success, business growth and for supporting employee development and training at all levels. Ms. Sandberg is president elect of the National Air Filtration Association (NAFA), and is a past Supplier board member of the Heating Air Conditioning Refrigeration Distributors International (HARDI). In spring of 2012 she was inducted into the University of Illinois Chicago (UIC) Entrepreneur Hall of Fame.  Ms. Sandberg holds a Bachelor of Science from University of Illinois at Urbana/Champagne; an MBA from Kellogg at Northwestern University and is a Certified Air Filtration Specialist (CAFS). Leslye is a founding member of the Kellogg Executive Women’s Network and continues to serve on the Leadership Team focusing on mentoring and peer group programs for Kellogg women alumni. 

ShepardAndrew Shepard Director, Global Market Management, Hollingsworth & Vose Company

Filtering Petroleum Based Liquids

Last 3 years as the Director, Global Market Management within the Engine and Industrial Media Division of Hollingsworth & Vose.            

Over 20 years of experience within the engine, automotive and commercial vehicle industry:

  • Mechanical Engineering and Engine Design with Ricardo Consulting Engineers
  • Management Consulting with Carlisle Company
  • Tier 1 management with the Stoneridge Company and ARRK “Ark” Product Development Corporation

Mechanical Engineering and English Double Major from Dartmouth College
Six-Sigma Black Belt
MBA from Boston University


StanfelChristine Stanfel, Ph.D. Director of Engineering, North America, Freudenberg Filtration Technologies, L.P.

Diesel Transportation and Equipment Filtration – New Opportunity for Design

Dr. Stanfel is Director of Engineering, North America, for Freudenberg Filtration Technologies, L.P.  She has held development or production management roles in filtration and nonwoven manufacturing for the duration of her career.  Most recently, she served as Chief Engineer, Global Media Development for Parker Hannifin, Racor Division.  Earlier, as Project Manager for Ahlstrom, she was responsible for the successful development and commercialization of patented diesel fuel-water coalescence media capable of reliable performance in current market fuels.  She began her career with EXXON Chemical Company formulating diesel lubricant additive packages for improved filterability.
Christine is a member of the SAE Filter Test Methods Committee and US Technical Advisory Group to ISO Technical Committee (TC) 22 (Road Vehicles).  She is Secretary of ISO TC 142 (Cleaning Equipment for Air) WG 6, and US Expert for ISO TC 22 and TC 142.

Christine Stanfel has a Ph.D. in Physical Inorganic Chemistry from Stanford University and a B.S. in Chemistry from the Johns Hopkins University

ThornburgDon Thornburg R&D Manager, Camfil Farr

Field Testing Using ASHRAE Guideline 26-2008

  • 1983 Bachelor of Science in Mechanical Engineering, North Carolina State University
  • 1983-1987 Facilities Engineer, United Telephone (Which is now Sprint) – Designed HVAC systems for equipment environments and IAQ.
  • 1987-1994 Engineering Manager, Flanders Filters – Designed filtration systems for hospitals, semiconductor cleanrooms, pharmaceutical cleanrooms, etc.
  • 1994-1997 Director of Engineering, Viskon-Aire – Designed filtration solutions for Paint/Autobody filtration and Commercial/Industrial filtration
  • 1997-Present R&D Manager, Camfil Farr – Designed filtration solutions for Commercial/Industrial filtration Standardization Experience
    • 1992-2011, Voting member of ASHRAE SSPC 52.2.  Server as Chairman of this committee from 2007-2011
    • 2005-2008 Chairman, ASHRAE GPC 26 – In-Situ Testing of Air Filtration Devices, published 2008.  Developed this field testing document to better help user understand how filtration really works.
    • 2005-Present, ISO TC 142 – A member of the US delegation since the formation of TC 142 in 2005 and currently the Vice Chair of the US TAG.
    • 2005-Present, ISO TC 142, WG 3 Chairman/Convener – Served as US Expert on this committee since its inception in 2005 and voted into the Convenor position in 2008. Currently developing international standards for Laboratory Testing, Field Testing, LCC, Energy and LCA Analysis of air filtration devices.

VeeckAl Veeck Executive Director of the National Air Filtration Association

TRPresentation title

Al Veeck is Executive Director of the National Air Filtration Association headquartered in Virginia Beach, Virginia. Al is a graduate of Butler University with a degree in Business Adm.  He began his 3rd career in the air filtration business in 1985 with Tidewater Air Filter and in 1998, became General Manager of Airpure Filter Sales & Service.

While with Tidewater, Al served as president of the National Air Filtration Association (NAFA) and served on the committee that wrote the first book on air filtration, NAFA Guide to Air Filtration. He was part of the first group of NAFA members to pass the national accreditation exam to become a NAFA Certified Air Filter Specialist (CAFS).  In 2002, he retired from Airpure and with prior experience in association work Al accepted the directorship of NAFA.

Al continues to be involved in many phases of service in the HVAC industry including ASHRAE where he is a member of TC2.4, “Particulate Contaminants and Particulate Contaminant Removal Equipment.”  In 2004, Al was selected by the ASHRAE Board of Directors as a Distinguished Lecturer speaking on air filtration applications and Standard 52.2. 

VijahakumarR. Vijayakumar, PhD President, AERFIL

Filter System for Space Habitat: Concept Design and Evaluation

Vijayakumar is the founder and head of AERFIL, a consulting company devoted to providing technical and business solutions and services for the filtration and contamination control industry as well as educational and training support for the industry. His current clients include major filtration companies in China, Brazil and India. With over over 25 yearsʼ experience in leading filtration companies to go with his PhD in particle technology, Vijayakumar is a globally recognized expert and mentor in filtration sought after by clients world wide. He is an advisor to NASA for air filtration systems. In keeping with his philosophy that knowledge grows only by sharing, he teaches freely and often wherever someone wants to learn the subject. He has been on the faculty of the short course on air and gas filtration at the University of Minnesota since its inception. Currently, he chairs standards development committees at the ISO and in the US.

WintersPhil Winters Director of Product Development, Filtration Group LLC

Opportunities and Pitfalls of In Situ Air Filter Testing

Phil Winters is the Director of Product Development for Filtration Group LLC.  He has worked in the HVAC and Contamination Control industries for over 20 years.  Phil has Bachelor’s and Master’s degrees in Engineering.  He has authored a number of technical papers on air filtration and has made numerous presentations on filtration and associated testing issues.  He is actively involved in several Technical Committees within ASHRAE and is a past Chair of TC 2.4.  Phil is also actively involved in ISO/TC142 (Cleaning Equipment for Air and Other Gases), both as a US Expert on several Committees and as the past Chair of the US Technical Advisory Group.  He is a licensed Professional Engineer within the State of Illinois and a NAFA Certified Air Filtration Specialist.

ZakerChris Zaker National Sales Manager, Glasfloss Industries

The Technology of Clean - English Version

Chris has spent the last eighteen years in the air filtration industry, sixteen of which with Glasfloss Industries, a nationally recognized HVAC air filter manufacturer.  He is currently the National Sales Manager for Glasfloss Industries.

Professional Achievements:  Zaker became a National Air Filtration Association (NAFA) Certified Air Filter Specialist in 1995.  He was NAFA’s Clean Air Award Committee Chairman from 1998 until 2002, after which he remained active on the committee.  Chris has been NAFA’s spokesman to ASHRAE for the past seven years as the presenter of NAFA’s Technology of Clean Air PowerPoint presentation at the annual AHR Expo.  Chris has delivered three presentations to NAFA on the topics of air filtration and the life cycle costing of air filtration.  Chris has delivered dozens of presentations on the importance of proper air filtration to business organizations, school administrators, healthcare facilities, and universities.  Zaker was on NAFA’s Technical Committee which published the NAFA Installation, Operations & Maintenance (IOM) Manual, 2nd edition in 2006.  In September, 2006, Zaker was the first Associate Member of NAFA to earn both the CAFS & NCT designations by passing the NCT exam.  Chris was the President of NAFA’s Associate Council, the association of air filter manufacturers within NAFA, from April 2006 to April 2007, which culminated with his directing NAFA’s Technical Seminar with his infamous “Tool Belt Speech” in April, 2007.  Chris became officially recognized as a “NAFA Distinguished Lecturer” in September, 2007.  Zaker was a member of the Technical Committee which published the NAFA Guide to Air Filtration, 4th Edition in January, 2008.  In September, 2008 Zaker was one of only five people to receive the “NAFA Distinguished Service Award” in the inaugural year of this award.  Chris has been on the NAFA Board of Directors since 2009 and in August 2011 he was voted onto the Executive Committee and is currently the Treasurer of NAFA.

Personal/Family: Chris resides in Lancaster, Ohio with his wife of 20 + years, Trisha and their three daughters; 10 year old twins Cassidy & Haley, and 8 year old Alison.  When not talking about NAFA or air filters, Chris can usually be found on Ohio softball diamonds coaching a girls travel fastpitch softball team.