Conference Speakers

BrainJoseph D. Brain, Ph.D.
Cecil K. and Philip Drinker Professor of Environmental Physiology, Department of Environmental Health, Harvard University

Dr. Brain's research emphasizes responses to inhaled gases, particulates, and microbes. His studies extend from the deposition of inhaled particles in the respiratory tract to their clearance by respiratory defense mechanisms. Of particular interest is the role of lung macrophages; this resident cell keeps lung surfaces clean and sterile. Moreover, the lung macrophage is also a critical regulator of inflammatory and immune responses. The context of these studies on macrophages is the prevention and pathogenesis of environmental lung disease as well as respiratory infection.

His research has utilized magnetic particles in macrophages throughout the body as a noninvasive tool for measuring cell motility and the response of macrophages to various mediators and toxins. Other experiments deal with the use of lung lavage to obtain and characterize macrophages. A rodent bioassay utilizing lung lavage has been developed; the assay has been used to estimate the relative toxicity of new and complex mixtures such as molds, urban dusts, welding fume, new materials being used in the workplace, as well as drugs and excipients administered by inhalation, including nanomaterials.

Respiratory infection is emphasized and includes mechanistic studies of the lung's defenses against Pseudomonas aeruginosa, an important pulmonary pathogen for patients with cystic fibrosis. Related studies deal with opportunistic lung infections in AIDS such as Pneumocystis carinii.

Another area of study is drug delivery to and through the lungs. The amount and anatomic distribution of an inhaled radioactively-tagged asthma mediator antagonist and an elastase inhibitor have been measured. Other experiments focus on the fact of recombinant proteins such as macrophage colony stimulating factors, neutral endopeptidase, surfactant apoproteins, antibodies, interleukins, and hormones delivered to and through the lungs.

Educatio:n S.D., 1966, Harvard University S.M., 1963, Harvard University S.M., 1962, Harvard University

Pure Nano: Health Effects of Nanoparticles
Abstract: Engineered nanoparticles (ENPs) are increasingly prevalent and are incorporated in consumer products as varied as cosmetics, printer inks, and building materials. The number of nano-enabled products is in the thousands. How do we assess their potential health effects? Two important factors are the inherent toxicity of the nanoparticle itself and the duration and concentration of human exposures to these particles. Also critical is the bioavailability of nanoparticles after they are deposited in the lungs during breathing or ingested or applied to the skin. The bioavailability of toxic constituents is in turn related to their biopersistence, especially their durability and solubility. Also important is the interaction of nanomaterials with body fluids and the rapid coating of nanomaterials with phospholipid and protein coronas. This influences the rate at which ENPs are phagocytized by cells and the extent to which they translocate across biologic barriers. Of particular interest is lifecycle analysis. How do wear and modifications release particles? What happens when nano-enabled products are discarded or incinerated? We need to develop a variety of high-throughput assays which will provide data on relative toxicity so that the enormous numbers of nanoparticles and products with nanoparticles can be grouped and classified according to their potential toxicity. Since the physical and chemical properties of ENPs vary widely it is challenging to assess the toxicity of ENPs. Continuing work to evaluate the safety and to engineer safer ENPs is needed.

ChristCharles S. Christ, Ph.D.
Director, R&D Liquid Filtration Technology and Services, Donaldson Company

Charles S. Christ Jr. is the Director of R&D for Liquid Filtration at Donaldson Company Inc. in Bloomington, MN, where he is responsible for fundamental filtration research, advanced development, new product development, and maintenance of existing products. His focus is developing new products and technologies in the areas of hydraulic, lube and fuel filtration, and identifying new markets and applications for liquid filtration.

Prior to Donaldson, he spent a number of years at Eastman Kodak Company, where he held a variety of roles in R&D. In the latter part of his career at Kodak he was the Director of Thermal Systems and Hardcopy Quality. He led the group at Kodak through a revitalization yielding numerous new media and printer products and technologies supporting the Professional, Home Printing and Kiosk/Retail Markets. During his tenure, the first Digital Photo Kiosk was commercialized. Currently, more than 100,000 Kiosks are in use around the world and have generated over 2 Billion prints.

He holds a BA in Chemistry from Cedarville University, a Ph.D. in Inorganic Chemistry from the University of Florida and completed Postdoctoral Research at MIT in Cambridge before joining Kodak.

Pure Filtration: Filtration Solutions – perspectives on current needs and future trends
Abstract: The need to protect people, equipment and processes has evolved and grown over the past several decades and continues to progress today. As a result, many new application specific filtration solutions have emerged with increasing performance requirements. This talk will focus on some of these current and future applications while highlighting the resulting innovations in air and liquid filtration markets.

DoucoureAbdoulaye "Ablo" Doucouré, Ph.D.
Senior R&D Scientist, Hollingsworth & Vose Company

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.

Pure Nano: Nanofiber Fiber Media for Air and Liquid Applications
Abstract: Technological investigation of nanofibers has sparked a significant amount of research over the past two decades, specifically in academia. These efforts have led to the emergence of viable manufacturing platforms (electro-spinning, electro-blowing, other trademarked technologies etc.) and the mass production of nano-nonwovens with growing opportunities in air and liquid filtration. The topics to be discussed in this presentation will address recent advances in nano-materials development in liquid filtration and they are outlined below: _ Definition: o Classes of nanofibers o Liquid filtration by nanofibrous media & nanofiltration technology _ Nanofibers versus other nonwoven media (comparison of properties and performance) _ Nanofiber manufacturing processes and the emergence of commercial products for the liquid market _ Regulatory measures addressing nanomaterials in filtration media _ What_s next for nano-nonwovens (new technologies, commercial trends)? This session will give participants an opportunity to find about the state-of-the-art of nanofibrous media technologies and to learn how these new products can help sharply broaden the use of nonwoven filters in the liquid markets.

ForcucciJay Forcucci
Senior Director, Product Management, Polymer Group Inc. (PGI)

MBA – Rensselaer Polytechnic Institute, May 1983
BS – Chemical Engineering, Rensselaer Polytechnic Institute, May 1980

Employment History:
2012 – Present, PGI, Inc., Charlotte, NC Senior Director Product Management  2010 – 2012 NanoStatics Corp., Circleville, OH Business Unit Manager of High Performance Products/Vice President Business Development  2003 – 2010 Filtration Group/Filtair, York, SC General Manager Filtrair  1998 – 2003 Hoechst/BBA Fiberweb, Charlotte, NC General Manager AQF Technologies  1987-1998 Lydall Technical Papers, Rochester, NH Business Unit Manager for Air and Liquid Filtration media  1985-1987 ETL Testing Labs, Cortland, NY Marketing Manager for Electrical Safety and HVAC performance test program  1983-1985 Pall Corporation, Cortland, NY Marketing Specialist for Breweries, Deep Well Disposal and High Fructose Corn Syrup

INDA Filtration Committee Member 2003-present  INDA Filtration Co-Chairman 2009-2011  INDA Lifetime Service Award 2011  IEST Committee Member – PR7, RP21, RP34 1992-1999  IEST Chairman RP21 1998  NFPA Committee Member 1988-1994 Fluid Power  INDA International Trade Advisory Board Since 2005

Pure Nano: Design and Development of Filter Media to Control Airborne Sub-micron "Nano" Particles
Abstract: Sub-micron _nano_ particles raise concerns for both our everyday indoor and outdoor air quality from a health perspective as well as the contamination of our industrial manufacturing processes. This presentation will review the different classifications of airborne particles, provide various industry standards used to quantify or rate the removal efficiencies, and detail new nonwoven technologies which can be utilized in the filtration and contamination control of airborne sub-micron _nano_ particles.

GeraciCharles L. Geraci, Ph.D.,
Coordinator, Nanotechnology Research Center, National Institute for Occupational Safety and Health (NIOSH)

Dr. Charles Geraci is a Senior Scientist and Coordinator of the Nanotechnology Research Center at NIOSH where he provides overall technical and strategic guidance to the program. He is recognized internationally for his leadership in the field. His 38 years of Industrial Hygiene practice experience includes the federal government, consulting, and private industry. Dr. Geraci earned a B.S. in chemistry from the University of Cincinnati; a Ph.D. in chemistry from the Michigan State University; is certified by the American Board of Industrial Hygiene, and is a Fellow of the American Industrial Hygiene Association. He has authored or co-authored many of the papers that have helped set the direction for proactive thinking in nanotechnology safety and health, including the NIOSH document "Approaches to Safe Nanotechnology". Dr. Geraci serves as a subject matter expert on various national and international panels and advisory boards.

Pure Nano: Evaluating and Controlling Exposures to Nanoparticles: The Role of Filtration: Research and Application Case Studies
Abstract: The development and application of engineered nanomaterials in industry continues to increase dramatically every year. As this new approach to material science becomes more integrated into manufacturing processes, the need to evaluate and control emissions and possible worker exposures as part of responsible risk management becomes more important. Recent work by NIOSH has used filtration technology to address several of these key needs. This presentation will provide an overview of that research.

HassanMohammad Hassan, Ph.D.
Nonwoven & Polymer Scientist, Biax-Fiberfilm Corporation

Mohammad Hassan was born in Cairo, Egypt and received his BSc degree in 2002 and his MSc degree in 2007, both in Chemical Engineering from Cairo University. In 2008, He joined North Carolina State University to pursue his PhD degree and in 2013 he graduated with PhD degree in Chemical Engineering in addition to a Graduate Certificate in Nonwovens Science and Technology. After Graduation, He joined Biax-Fiberfilm Corporation as a nonwoven scientist to develop and implement new products, processes, materials and technology concepts. Dr. Hassan has around 10 peer reviewed papers and conference proceedings besides 6 pending patents in the area of nonwovens science and technology.

Pure Filtration: Spunblown Fiber Technology and its performance in Filtration Applications
Abstract: Spunblowing is a hybrid process bridging the gap between the conventional meltblowing and spunbonding processes. Spunblowing process has multi-row spinnerette similar to the spunbonding technology but filaments are cooled and attenuated at the nozzles tip using hot or cold air. Biax Spunblowing Fiber Technology is very flexible and highly productive. It accommodates meltblown and spunbond resins and production capacity can reach up to 500 Kg/m/hr depending upon the intended application. Spunblown fibers have unique fiber size distribution with a noticeable portion of submicron fibers that enable them to achieve high filtration efficiencies at lower pressure drops. Spunblown superior performance in air and fuel filtration will be discussed besides a comprehensive mapping of the spunmelt technologies filtration capability and performance. Fiber morphology and its effect on the electrostatic charging capacity of spunblown fabrics will be discussed and compared to the conventional meltblown fabrics. in general, the wider fiber size distribution and the unique fiber morphology of spunblown fabrics enables higher filtration efficiencies at lower pressure drops besides higher dirt holding capacity and higher electrostatic charging characteristics.

NicholsStephen Nicholas
President, Air Industries, Inc

Stephen W. Nicholas is President of Air Industries, Inc. an Independent Factory Trained and Authorized Manufacturer's Representative. Steve has been involved in the field of air filtration since 1984. He has over 20 years of field experience with professional training by the Harvard School of Public Health for certifying in-place HEPA filter testing for nuclear and non-nuclear applications. Mr. Nicholas is a Certified Air Filtration Specialist (CAFS) by the National Air Filtration Association (NAFA). He has successfully completed training by the U.S. Environmental Protection Agency (EPA) for Building Air Quality. Steve is also certified by the National Balancing Institute (NBI) for Testing Adjusting and Balancing (TAB), HVAC systems and is trained and qualified to conduct HVAC system diagnostics.

Mr. Nicholas is a member of good standing of the following professional industry trade associations ASHRAE, AFE, IEST, BSA, AEE AIAQC, and NAFA. He has written and authored several technical articles that were published in various national trade journals. In 1997 Steve contributed to the NAFA Installation Operation & Maintenance (IOM) Manual and in 2000-2001 to the 3rd Edition of the NAFA Guide to Air Filtration. He also contributed to the writing the NAFA User's Guide for ASHRAE Standard 52.2-1999. He is Past President of NAFA, and Past President of the Boston Chapter of ASHRAE.

NAFA Air Tutorial: Air Filter Application and Best Practice

PourdeyhimiBehnam Pourdeyhimi, Ph.D.
Associate Dean for Industry Research and Extension, William A. Klopman Distinguished Professor, North Carolina State University, Executive Director, The Nonwovens Institute

Dr. Pourdeyhimi Holds a Ph.D. from the University of Leeds, UK. He is The William A. Klopman Distinguished Chaired Professor of Materials in the College of Textiles at North Carolina State University. He is also a Professor in Chemical and Biomolecular Engineering. He is currently serving as the Associate Dean for Industry Research and Extension in the College of Textiles and is also the Founding Executive Director of the Nonwovens Institute. Prior to joining NC State, he was a professor at the School of Textiles and Fiber Engineering at the Georgia Institute of Technology. Previously, he served for eleven years on the faculty in Textiles; and Materials & Nuclear Engineering at the University of Maryland. He spent two years at Cornell as a research scientist studying biomaterials. He is the recipient of the 1994-1995 Distinguished Achievement Award by the Fiber Society, The 2007 TAPPI Technical Achievement and Hollingsworth award and the 2008 INDA Lifetime Technical Achievement Award. He has served as the President of the Fiber Society and has also been elected as the Fellow of the Textile Institute in United Kingdom.

Dr. Pourdeyhimi's research interests are in the area of nonwovens, responsive fibrous systems, filtration, computational modeling, materials, failure mechanisms, software algorithms, optics and image analysis. He has published several books and monographs, has authored or co-authored over 200 refereed publications, has more than 30 patents and has made over two hundred presentations in his areas of interest.

Pure Filtration: The Long View: The Future of Filtration
Abstract: Associate Dean Behnam Pourdeyhimi investigates what the future might have in store for filtration technology over the next 5_10 years. Looking at the current issues impacting the development of air and liquid filter media, Pourdeyhimi will share how those issues might change as the current drivers are replaced with future advancements and demands.


Jim Rosenthal
CEO, Allergy Clean Environments

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 in2001. 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 25,000square feet of office, warehouse and manufacturing space at 5757 E. Rosedale in Fort Worth. The company employs 52 people.

NAFA Air Tutorial: Air Filtration Applications for Health and the Indoor Environment


David Rousse
President, INDA, Association of the Nonwoven Fabrics Industry

Dave Rousse became INDA's President in late 2012 following over 15 years' experience in nonwoven producing companies and an entire career in engineered materials since graduating from Dartmouth and its associated Engineering and Business schools. Rousse was President, Hygiene/Medical Americas at Fiberweb in Simpsonville, SC before being promoted in 2007 to President of all of Fiberweb Americas and basing in Nashville. Recently, he served as CEO of HydroLogex LLC, a young Nashville-based designer/supplier of proprietary decentralized wastewater treatment systems in the CleanTech sector. Prior to Fiberweb, Rousse was a Vice President at Monadnock Paper Mills, a manufacturer of nonwovens and specialty papers. He was also a Vice President & General Manager at FiberMark Inc., another specialty paper/nonwovens producer. Prior to that he held a series of marketing/sales leadership positions at International Paper.


SotiriouGeorgios Sotiriou, Ph.D.
I Research Fellow, Molecular and Integrative Physiological Sciences, Center for Nanotechnology & Nanotoxicology, Dept. of Environmental Health, School of Public Health, Harvard University

Pure Nano: Towards Sustainable Nanotechnology: Opportunities and Challenges with Engineered Nanoparticles
Abstract: Engineered nanoparticles (ENPs) are employed every day in commodities as well as advanced sophisticated applications such as drug delivery and theranostics (therapy & diagnostics). Their broad use, however, prompts for further detailed investigations on their interactions with biological systems and the environment. The goal of this presentation is to outline the opportunities and challenges of ENPs focusing on their scalable gas-phase synthesis and their detailed physicochemical and morphological characterization. These characteristics greatly affect their both toxicity to living tissue and methods used to control their airborne properties. A fundamental understanding on the parameters that influence their bionano-interactions will be obtained that facilitates the _safer-by-design_ synthesis of ENPs that maintain desired properties with mitigated risk towards the environment and human.


John D. Spengler, Ph.D.
Akira Yamaguchi Professor of Environmental Health and Human Habitation, Department of Environmental Health, Harvard University

John D. Spengler is the Director of the Center for Health and the Global Environment at the Harvard School of Public Health as well as the Akira Yamaguchi Professor of Environmental Health and Human Habitation. He has conducted research in the areas of personal monitoring, air pollution health effects, aerosol characterization, indoor air pollution and air pollution meteorology. In addition to his academic and research activities, Professor Spengler has been active in professional education workshops, distance learning and short courses. He also serves as an advisor to several global organizations, including the World Health Organization.

Pure Nano: Audience Q & A


Christine Sun, Ph.D.
Textile Research Associates

Dr. Christine Sun is the Principal of Textile Research Associates (TRA), a research and consulting firm specializing in textiles, nonwovens, and their applications in air and liquid filtration. Dr. Sun is a globally recognized technical and market expert in nonwovens and filtration industry. With extensive experiences from both industrial (12 years) and academic (14 years) services, she has not only broad and in-depth knowledge but also hands-on experiences in the areas of advanced nonwovens,nanofibers and filtration technologies. She has authored around 100 technical publications and holds several patents in these same areas. She was the technology director of liquid filtration at Donaldson from 2011-2014, and R&D manager at Freudenberg Filtration Technologies from 2004-2011. Before that she was a research professor at the University of Tennessee’s Textiles and Nonwovens Development Center (TANDEC).Dr. Sun earned her BS, MS and Ph.D. in Chemical Engineering from Tsinghua University, Beijing, and executive certificate from Kellogg School of Management. She received the Sr. Scientist Award in 2012 from AFS and the Best Paper Award infiltration from INDA in 2008. She is a board member for Textile Research Journal and the Journal of Industrial Textiles. She serves the AFS Board of Directors, currently the chair of the ASHRAE MTG-EEC (filter energy efficiency classification committee). She is also an active member to many industrial standards committees, such as ASHRAE52.2, ASHRAE 145.2, SAE Filter Test Methods Committee (FTMC), and National Fluid Power Association (NFPA).

INDA's Nonwoven Filter Media Training Course

Nonwoven Filter Media Training Course Agenda

TorremorellMontserrat Torremorell, DVM, Ph.D.
Associate Professor, School of Veterinary Medicine, University of Minnesota

Dr. Montserrat Torremorell is currently the A.D Leman Chair in Swine Health and Productivity and an associate professor in the Department of Veterinary Population Medicine at the College of Veterinary Medicine. She earned her DVM degree from the University Autonomous of Barcelona in 1994 and her Ph.D. from the University of Minnesota in 1999.

Dr. Torremorell joined the University of Minnesota in her current role in May 2009. Prior to that, she was employed at Genus/PIC, the largest swine breeding company in the world, in a range of roles related to health assurance and health research. Dr. Torremorell led the efforts in PRRSV elimination where PIC USA was able to move from 12% to 100% PRRSV negative status in 5 years. Dr. Torremorell also participated in the National PRRSV Elimination program in Chile and more recently has worked in swine influenza control and elimination. Dr. Torremorell has an extensive background in swine health, research, and production systems, including health improvement strategies, disease eradication, diagnostics and biosecurity programs, and health genomics.

Dr. Torremorell currently teaches a veterinary elective class in Veterinary Medicine and collaborates in other teaching activities related to swine diseases. She is also the director of the Swine Disease Eradication Center at the College of Veterinary Medicine at the University of Minnesota. Dr. Torremorell is the author of more than 40 peer-reviewed journal articles and more than 100 abstracts and articles in conference proceedings. Dr. Torremorell was awarded with the Allen D. Leman Science In Practice Award from Pfizer and the University of Minnesota in 2003 for the work on PRRS elimination. Her research interests include infectious diseases of swine focusing on influenza and other swine diseases of economic significance. For her influenza research, she is interested in further understanding SIV transmission, including aerosol transmission and factors that contribute to the persistence and spread of flu in populations. In addition she is interested in further elucidating strategies to control, eliminate and prevent flu infection in pigs and further understanding the interface pigs and people.

Pure Filtration: Use of Air Filtration Systems to Reduce Risk of Swine Viruses
Abstract: Research has validated the capability of air filtration systems to prevent the introduction of viruses into swine farms and reduce production losses, specifically those associated to porcine reproductive and respiratory syndrome (PRRS) virus. Air filtration is being adapted by many producers in the Midwest and as more pork producers begin to retrofit existing structures to accommodate air filtration, the opportunity for filter manufacturers will only grow. Ongoing work regarding cost-benefit of air filtration in swine farms, reduction of introduced viral infections, standards of filter testing for PRRS, particle size that viruses associate with, as well as opportunities and challenges of air filtration in livestock production will be discussed.

WagnerJennifer Wagner, Ph.D.
Principal Infection Control Consultant, Prism Environmental Health & Safety, Inc.

Dr. Jennifer Wagner, established Prism Environmental Health and Safety Solutions, Inc. (PrismEHS) in 2011 to focus her expertise on reducing risk and managing liability for the healthcare in the area of environmental infection prevention. She has over fifteen years of experience in environmental and clinical microbiology. Dr. Wagner holds a bachelor of science in Genetics and a doctorate of philosophy in Molecular Biology and Biochemistry from the University of California. She is focused on reducing HAIs through research, education and consulting. Dr. Wagner has worked with several innovative academic and industry leaders to develop research based programs that test the efficacy of new infection prevention strategies. She travels nationwide presenting this research to heathcare facilities and related organizations including the Centers for Disease Control and Prevention (CDC) and the Center for Health Design (CHD), among others. Dr. Wagner's research is published in Cell, Journal of Cell Biology (JCB), ASHRAE and other peer reviewed journals.

Pure Filtration: Comparing air delivery methods in an Operating Theatre
Abstract: Importance: The rate of surgical site infections (SSI) must be reduced. Cleanroom air delivery mechanisms significantly reduce particle contamination and may help reduce SSI rates, increase positive clinical outcomes and improve energy cost savings. Objectives: To compare the ability of traditional OR air delivery methods with those used in pharmaceutical and semiconductor cleanrooms to remove particle and microbial contamination from a surgical site. Additional objectives are to address the need for a higher standard of air cleanliness in ORs, the potential to correlate airborne particle counts with microbial contamination trends and finally, to suggest implementation of standards similar to those used in manufacturing industries. Design: Four ceiling diffuser layouts were tested to compare their capacity to reduce airborne contaminants. Three layouts complied with ASHRAE 170, the Multi-Diffuser Array (MDA) and two Single-Large Diffusers (SLD-1 and SLD-2) and the fourth layout was an Air Curtain (AC) design. The SLD-1 configuration was identical to the MDA configuration in diffuser area, CFM, ACH and energy consumption. MDA, SLD-1 and SLD-2 were tested at air velocities in feet per minute (fpm) of 30fpm and 50fpm. Active microbial samples were collected from a mock surgical site. Total airborne particle counts were collected within the sterile field. Setting: The study was performed in a fully functional operating theatre at Huntair, Inc. in Tualatin, Oregon. Results: For microbial contamination, SLD-1 at 50fpm and SLD-2 at both 30 and 50fpm removed all detectible contamination from the mock surgical site. SLD-1 at 30fpm removed more microbial contamination from the site than MDA at both 30 and 50fpm (2, 24 and 11 total cfu/m3, respectively). MDA at 30fpm performed better than AC and removed more microbial contaminants (24 and 87 total cfu/m3, respectively). SLD-1 and SLD-2 met the ISO 5 criteria for sterile pharmaceutical compounding cleanrooms. For total airborne particles, SLD-1 performed significantly better at removing particles from the sterile field than the conventional configuration, MDA, at air speeds of 30ft/min and 50ft/min (p=<0.05). Conclusions: In this study cleanroom air delivery methods (SLD) outperformed traditional OR methods at removing contaminants from the air. SLDs in ORs may reduce SSI rates and increase positive clinical outcomes without increasing cost.


Chris Zaker
National Sales Manager, Glasfloss Industries

NAFA Certified Air Filter Specialist (CAFS) NAFA Certified Technician (NCT)
NAFA Distinguished Lecturer Work history: 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.

NAFA Air Tutorial: Technology of Clean Air: How Do Filters Remove Micro-contaminants from the Environment?

Moderators for Filtration 2014


Jenny Dobmeier
Filtration Business Manager,
Johns Manville


Steve Ogle
Technical Director, INDA


Kevin Kinzer
Laboratory Manager,


Al Veeck
Executive Director,
National Air Filtration Association (NAFA)