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Air Filtration for Hospitals

July 16, 2024, Tuesday 

8:00am-10:00am, ET Canada & US

$USD 350

$USD 175 (Member Only)

Air Filtration for Hospitals

Course Objective

•This course gives an overview of the air filtration criteria and practices for a hospital-built environment. We will discuss the common contaminants challenging the installed air filters and further understand filter performance, selection, installation, stages, and the processes associated with particle loading and filter clogging.

•Participants will have the opportunity to learn how climate and operational conditions influence filter performance and the appropriate maintenance measures required to replace and dispose of a filter. Participants will also gain field knowledge and practical techniques for measuring, monitoring, and managing the air quality needed to protect the health and safety of patients, healthcare workers, visitors, and HVAC equipment.

•We will also discuss the recent updates on the associated filtration standards, developments, filtration challenges, and future trends for healthcare facilities.

Course Outline

Air Filtration Requirements and Principles for Hospitals

  • Containments challenging the hospital's built-environment

  • Filtration processes and stages

  • Filter selection and installation for hospitals

  • Filter performance (efficiency, pressure drop, particle loading, and clogging considerations)

  • Climate and operation conditions

  • Advances in air quality measurement and monitoring

  • Appropriate maintenance and disposal

Industrial Practices, In-situ Filter Testing, and Compliance

  • Air filter selection for hospitals

  • HVAC Maintenance considerations

  • Measure, Monitor, and Manage Your HVAC Air Filtration System

  • ASHRAE, ASHE, JCAHO, and the latest CDC COVID-19 Guidelines Compliance

New Updates, Opportunities and Trends for Healthcare Facilities

  • Updates and New Developments

  • Emerging challenges and opportunities

  • Trends for future developments

Instructor Biography

Air Filtration for Hospitals

Dr. Iyad Al-Attar


Dr. Al-Attar is a mechanical engineer and an independent air filtration consultant. He is also a Visiting Academic Fellow in the School of Aerospace, Transport, and Manufacturing at Cranfield University, consulting for air quality and filter performance relevant to land-based gas turbines. In 2020, EUROVENT Middle East appointed Dr. Al-Attar as the first associated consultant for air filtration affairs. Dr. Al-Attar received his engineering degrees (BSc, MSc, PhD) from the University of Toronto (Canada), Kuwait University, and Loughborough University (UK), respectively. His area of expertise focuses on the design and performance of high-efficiency filters for HVAC and land-based gas turbine applications, particularly on the chemical and physical characterization of airborne particles. As a climate advocate and environmental enthusiast, he is currently very active in researching sustainable urban development and climate change with several academic institutions, such as the Massachusetts Institute of Technology and Harvard Business School. Dr. Al-Attar is a columnist in the EUROVENT Middle East newsletter, Climate Control Middle East Magazine, and ES Engineering, USA. He has authored many articles on air filter design, performance, particle characterization, and climate change. Dr. Al-Attar is an editorial member/referee in the Filtration Society (UK) and the Journal of Cleaner Production.

Air Filtration for Hospitals

Mr. Stephen Nicholas


Mr. Stephen Nicholas is the past President of The National Air Filtration Association and has been involved with HVAC air filtration industry since 1984. He specializes in Hospitals and Health Care Facilities’ applications, and attended the Harvard School of Public Health for certifying In-Place HEPA filters for nuclear and non-nuclear applications. He is also a Level II certified filter technician for HEPA Filter Bag In/Bag Out Installations and a certified air filtration specialist. Steve has been certified for Testing Adjusting and Balancing Commercial Building HVAC systems. He is also a Life Member of ASHRAE and has served on several National Committees. One of Steve’s main responsibilities is training and educating health care facility engineers, building operators, and maintenance technicians with the proper selection, installation and maintenance of HVAC air filtration systems.

Air Filtration for Hospitals

Mr. Chris Muller


Mr. Muller, ASHRAE Distinguished Lecturer, Director IEQ Technical Services of AAF Flanders, is recognized globally as an expert in indoor/environmental air quality, filtration and enhanced air cleaning systems, and gas-phase air filtration technology with demonstrated competencies in product development and applications. With more than 30 years in the filtration industry, he has written and spoken extensively on these and related topics with more than 250 articles and peer-reviewed papers, more than 150 seminars, and 8 handbooks to his credit. He has been a driving force on multiple industry association and technical committees, improving awareness and standards in the industry, especially in the field of gas-phase air filtration and indoor environmental air quality. He co-authored ASHRAE’s Position Document on Filtration and Air Cleaning, ASHRAE Guideline 42P: Indoor Air Quality in Commercial and Institutional Buildings, and ASHRAE Standard 62.1 User’s Manual.


Dr. Jenny Berens, Filter Engineering Manager of North America,  Freudenberg Filtration Technologies, USA.

Dr. Berens is a Chemical Engineer with a M.Sc. in Heat and Mass Transfer from Kungliga Tekniska Högskolan, Stockholm, Sweden and a Ph.D. in Nanotechnology from the University of Kentucky, USA. She has 20 years of experience in R&D working for various Fortune 500 companies in roles such as hardware component owner, materials expert, laboratory and quality engineering process developer, and as team and project leader.

In early 2017, Dr. Berens was recruited by Freudenberg Filtration Technologies, headquartered in Weinheim, Germany with a corporate office in Hopkinsville, KY as a Project Segment Engineer. Shortly thereafter she was promoted to the Industrial Filtration Filter Engineering Manager of North America. Within this position, Dr. Berens is responsible for regional product development, product & application engineering, VA/VE efforts, and internal and well as public education regarding filter science.

Dr. Berens is a voting member on and the Secretary of the ASHRAE SSPC 52.2 committee, among other ASHRAE memberships and functions. She is also involved in the global filtration science community as a voting member representing filter producers in the US TAG to ISO/TC 142 on Advisory Panels 3, 4, and 7. Additionally, she supports the research carried out under ISO/CD 10121-3.

Dr. Mehdi Shirmohammadi, R&D manager of Termeh Mask Co. Iran. Dr.  Shirmohammadi has more than 20 years of experience (academic and industrial) in air filtration systems and respiratory masks. Mehdi is a recognized expert in textile fibers, high-efficiency filter media, and antibacterial adsorbents, involved in co-leading standard development committees at the ISIRI in writing standards for respiratory masks. During his air purification research, he worked through the chain of air cleaning processes from polymers, textile fibers, filter media, filter elements, filtration systems, testing instruments, and standardization. He has been focused on antimicrobial adsorber filter media since 2010 and has some patents and publications. Mehdi received his Ph.D. in Textile (chemistry and fibers sciences) from IAU, Iran. He is a Certified Filtration and Separation Specialist (CFSS) for air filtration, awarded as WFI’s Student of the Year in 2022.

Dr. Christine Sun, President of WFI (USA)

Dr. Sun is a renowned technical and market expert in the global filtration industry. With over 30 years of experience in both academia and the industry, she has an in-depth knowledge of filtration, and extensive hands-on expertise in product development, with over 100 technical publications and patents. She is also actively involved in many air/liquid filter standard test developments. Dr. Sun received her Ph.D. from Tsinghua University, Beijing, China, and her Executive Certificate from Northwestern University - Kellogg School of Management. From 2004 to 2011, Dr. Sun worked for Freudenberg Filtration Technologies as the R&D manager and Technology Director for Donaldson 2011-2013. She was the AFS Chair from 2016 to 2017 and received the AFS Fellow Award in 2019, Sr. Scientist Award in 2012, and the best paper award from INDA in 2008. She is also an editorial board member for Textile Research Journal and Journal of Industrial Textiles.

Ms. Kathleen Owen, ASHRAE Fellow and Distinguished Lecturer, USA

Ms. Owen is an expert in air filter/cleaner filtration efficiency and test method development. She is ASHRAE ETF member,  Past chair of ASHRAE 52.2 chair,  SPCC 145 and SPC 185.5.  She has more than 30 years in air cleaner testing and method development as well as several areas of IAQ and aerosol research. She also developed chamber test methods for gases and bioaerosols based, in large part, on the Association of Home Appliance Manufacturers (AHAM) CADR test method.She ran the air cleaner testing lab at RTI for over 20 years and is now a consultant. Her BS in chemical engineering is from North Carolina State University, and her MS in Air Pollution Control Engineering is from the University of North Carolina at Chapel Hill.

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