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Technical Committee on Ultraviolet Air and Surface Treatment

TC 2.9 is concerned with all aspects of equipment and systems that utilize ultraviolet radiation to destroy or de-activate chemical and / or biological air and surface contaminants in HVAC systems and indoor spaces, including but not limited to effectiveness, safety, maintenance, and economics.

ASHRAE 2014 Annual Conference - June 28 - July 2, Seattle, Washington, USA
Latest Committee Minutes:
Meeting Agenda:
The TC 2.9 Meeting Schedule (along with other UV-related meetings) is as follows:
  • TC 2.9 Program, Handbook, and Standards Subcommittee Meetings
    Sunday, June 29, 2014 at 08:00-12:00 in Boren (4-Union St Tower, Sheraton)
  • TC 2.9 Research Subcommittee Meeting
    Monday, June 30, 2014 at 08:00-10:00 in Boren (4-Union St Tower, Sheraton)
  • TC 2.9 Ultraviolet Air and Surface Treatment Main Committee Meeting
    Monday, June 30, 2014 at 10:00-12:00 in Boren (4-Union St Tower, Sheraton)
  • SPC 185.1 MOT/UVC Lights for Use in Air Handling Units or Air Ducts to Inactivate Airborne Microorganisms
    Saturday, June 29, 2014 at 08:00-12:00 in (4-Pike St Tower, Sheraton)
  • SPC 185.2 MOT/UVC Lights for Use in HVAC&R Units or Air Ducts to Inactivate Microorganisms on Irradiated Surfaces
    Saturday, June 29, 2014 at 12:00-15:00 in (4-Pike St Tower, Sheraton)
TC 2.9 Sponsored Sessions:
  • None at this meeting.
Access to members only area

Link to TC 2.9 members only area: http://tc29.ashraetcs.org/memonly/memonly.html

If you do not have access to the members only area of this website, but feel you require it, please contact the TC chairperson at the email address provided in the page footer.

New York 2014
CONFERENCE PAPER SESSION 6 (INTERMEDIATE)
Indoor Air Quality: Impact of Variables
Track: Indoor Environmental Health / Indoor Environmental Quality
Monday, January 19, 2014 08:00-09:30
Room: Sutton North
Chair: John Dunlap, Dunlap and Partners, Richmond, VA
4. Ultraviolet Germicidal Irradiation (UVGI) in Hospital HVAC Decreases Ventilator Associated Pneumonia (NY-14-C023) Robert Scheir, Ph.D., Member and Timothy Leach, Steril-Aire, Burbank, CA
Denver 2013
Analysis of Chemical and Physical Effects
of Ultraviolet Bulbs on Cooking Emissions
Monday, June 25, 2013 11:45-12:30
Room: Governors Square 15 (Plaza Building, Sheraton Denver)
1.00 Farrell -- Analysis of Chemical and Physical Effects of Ultraviolet Bulbs on Cooking Emissions
There is a growing recognition of the risks to health, firehazard, and air quality from cooking emissions. Recent research has identified what is emitted when foods arecooked. Some of the emitted mass is captured in theexhaust system. The balance is expelled into the atmosphere. This session evaluates the purported benefit of adding better filtration and ultraviolet(UVC) bulbs in kitchen hoods. Laboratory test results and real life results have not shown full correlation.
2.00 -- DESPATIS -- UVC for Kitchen Ventilation Systems: How and Why It Works
The use of UVC for kitchen exhaust hoods is currently an emerging market. The purpose of this session is to discuss the proper application of the technology and the mechanics of why UVC / ozone systems work to keep the duct clean and reduce the harmful emmisions. It explores why some installations are sucessful and why others are not. The presentaion includes anecdotal evidence of sucessful installations as well as information for the contractor on the proper selection of equipment.
San Antonio 2012
SEMINAR 29 (INTERMEDIATE)
Current Design Standards for Upper Air Disinfection Installations: Bridging Global Gaps
Monday, June 25, 9:45am - 10:45am Room 007D
Track: HVAC&R Fundamentals and Applications
Sponsor: 2.9 Ultraviolet Air and Surface Treatment
Chair: Sam Guzman, Member, American Ultraviolet Company, Schooleys Mountain, NJ
This seminar discusses the need for a set of standards regarding the proper application of upper air UV disinfection units and how it impacts the transmission of airborne diseases worldwide. The lack of standards and the variation in the application of UV wall and ceiling mounted fixtures has led to resistance to the use of UV technology as a solution for transmission control. The design and installation of the UV fixtures has a dramatic impact on the effectiveness and safety of their use.
Learning Objectives:
Understand the effectiveness of UV against airborne microorganisms.
Explain how UV energy works to destroy microorganisms
Describe the basics of a proper installation
Explain how an improper installation can be dangerous and ineffective
Provide an overview of some important worldwide efforts to curtail the spread of airborne pathogens
Explain some of the basic requirements for UV equipment for a safe and effective installation.
1. The Need for Standards for Upper Air UV Applications
Richard L. Vincent, Member, Mount Sinai School of Medicine, New York, NY
2. System Design for Upper Air Disinfection
Chuck Dunn, Member, Lumalier Corporation, Memphis, TN
TECHNICAL PAPER SESSION 8 (ADVANCED)
Study the Degradation of Typical HVAC Materials, Filters, and Components Irradiated by UVC Energy
Wednesday, June 27, 9:45am - 10:45am Room 007A
Track: HVAC&R Systems & Equipment
Sponsor: 2.9 Ultraviolet Air and Surface Treatment
Chair: Richard L. Vincent, Member, Mount Sinai School of Medicine, New York, NY
1. Study the Degradation of Typical HVAC Materials, Filters, and Components Irradiated by UVC Energy. Part I. Literature Search (1509-RP) (SA-12-026)
Robert E. Kauffman, Ph.D., University of Dayton Research Institute, Dayton, OH
2. Study the Degradation of Typical HVAC Materials, Filters, and Components Irradiated by UVC Energy. Part II. Polymers (1509-RP) (SA-12-027)
Robert E. Kauffman, Ph.D.1 and J. Douglas Wolf1, (1)University of Dayton Research Institute, Dayton, OH
Chicago 2009
FORUM 2 (INTERMEDIATE)
Energy Savings with In-Duct UV-C
Monday, 1/26, 8am - 9am Dearborn 1 (7)
Energy Savings with In-Duct UV-C
Track: Operational Topics
Sponsor: 2.9 Ultraviolet Air and Surface Treatment
Chair: David Marciniak, P.E., Member, GSA, Washington , DC
It is well documented that C-band ultraviolet radiation (UV-C) is effective in preventing microbial growth on surfaces, particularly air handling unit coils. However, better quantification of energy and maintenance benefits is needed to accurately calculate sustainable benefits and life cycle costs. Much of the current body of knowledge is anecdotal and performance data is complicated by changing environmental conditions and HVAC system responses. TC 2.9 is pursuing a research initiative to compare the long-term performance of standard new coil installations to coils irradiated with UV-C. This forum allows discussion of the proposed approach, the installation, the parameters to be measured, and the performance indicators desired.
Salt Lake City 2008
SEMINAR 13 (INTERMEDIATE)
UVGI Application in the Operating Suite
Sponsor: 2.9 Ultraviolet Air and Surface Treatment
Chair: Chuck Dunn, Member, Lumalier Corporation, Memphis, TN
The application of ultraviolet germicidal irradiation (UVGI) in the operating suite has been ongoing for decades. New data continues to support the technology's ability to reduce nosocomial infections acquired during invasive procedures. Experts discuss portable UVGI systems to disinfect operating suites before and after procedures and data confirming reduction of contaminate on surfaces, fixed UVGI systems applied during procedures and data confirming reductions in hospital acquired infections, and the effect of these systems on materials within the operating suite. This seminar focuses on these aspects with practical knowledge gained from experience in the field.
1. Portable UVGI Systems and a Method of Area Sterilization Jeffrey L. Deal, M.D., Roper Hospital, Charleston, Technology Co., Davis, CA
2. UVGI Applied During Orthopaedic Surgery and the Rate of Infection Meredith C. Stines, Member, American Ultraviolet, Lebanon, IN
3. The Effect of In-Room UVGI Systems on Materials Within the Operating Suite Dave Witham, Member, Ultraviolet Devices Inc. (UVDI), Valencia, CA
New York City 2008
Forum 7
UVC Surface Disinfection
Sunday, 8:00AM - 9:30AM, Room Beekman
Sponsor: TG2 Ultraviolet Air and Surface Treatment
Moderator: Derald G. Welles, Life, Steril-Aire, Inc., Liverpool, NY
This forum will discuss the need for more detailed presentations on ultraviolet surface disinfection while helping define focused research topics regarding the use of UVC for eliminating microbial contamination on surfaces in air handlers or other ducted HVAC systems. The discussion focuses on the effectiveness of UV surface disinfection and whether coil/surface disinfection contributes significant energy savings to the building owner.
Seminar 39
Applying UVGI Without Getting Burned: Taking Precautions And Overcoming Barriers
Tuesday, 8:00AM - 9:30AM, Room Trianon
Track: Operational Topics
Sponsor: TG2 Ultraviolet Air and Surface Treatment
Chair: Stephen B. Martin, P.E., Member, CDC/NIOSH, Morgantown, WV
The application of ultraviolet germicidal irradiation (UVGI) systems is becoming common for improving indoor air quality, controlling airborne disease transmission, and as a bioterrorism countermeasure. However, many people continue to have questions regarding human and HVAC component exposures to UVC. Those interested in applying UV technologies need to understand the biological effects of human exposure to UVC, the potential for HVAC component degradation, how to plan and install systems to limit exposures, and how to safely and properly maintain these systems. This seminar focuses on these aspects with practical knowledge gained from experience in the field.
1. UV Degradation of HVAC System Components David L. Witham, P.E., Member, Ultraviolet Devices, Inc., Valencia, CA
2. Human Safety and UVC Exposure Richard L. Vincent, Member, St. Vincent's Hospital--Manhattan, New York, NY
Long Beach 2007
Forum 10
Experience with Coil Fouling, UV and Energy Savings in HVAC Systems
Tuesday, 12:30PM - 1:30PM, Room 101A
Mort Blatt, ASHRAE Fellow, Moderator
Seminar 80
UVGI Installations in Gov't. Buildings: Exploring the Known's, Unknowns, and Gaps Regarding Potential Benefits for Public Health, Employee Safety, and Energy Efficiency
Wednesday, 12:15PM - 1:45PM, Room 102B
Chair: Chuck Dunn, Member
Speakers:
Stephen B. Martin Jr., P.E., Member
Shawn Siegrist
Thomas V. Williams Jr.
David S. Marina, P.E., Member
2007 Winter Meeting
Seminar 10: Fundamentals of Ultraviolet Light for IEQ and HVAC Applications
Tuesday, January 30th, 11AM to 12:30PM, Dallas Convention Center
Chair: William P. Bahnfleth, Ph.D., P.E., Fellow, Pennsylvania State University, University Park, PA
With adequate exposure time, ultraviolet-C (UVC) radiation can effectively inactivate a variety of microorganisms, classified as bacteria, viruses and mold spores. Thus, UVC lamps have been used in upper-air applications for decades and are frequently installed inside HVAC systems to help maintain clean coils, drain pans and duct surfaces. UVC lamps are also increasingly used in conjunction with mechanical ventilation and air filtration to help prevent airborne disease transmission. Although UVC lamps are becoming more common in IEQ and HVAC applications, few practicing HVAC professionals understand the fundamentals of UVC. This seminar describes these fundamentals.
UVC 101, John M. Putnam, Member, Environmental Dynamics Inc., Sterling, VA
UVC Upper-Air Systems, Chuck Dunn, Member, Lumalier, Memphis, TN
UVC Applications in Built-Up HVAC Systems, Forrest B. Fencl, Member, UV Resources, Valencia, CA
UVC Applications in Unitary HVAC Systems, John J. Andros, Member, American Ultraviolet Corp., Shelton, CT
2006 Summer Meeting
Ultraviolet Germicidal Irradiation (UVGI) Inactivation of Infectious Microorganisms
Forum 15 - Moderator: Morton Blatt
Presenters: Richard Vincent, Karin Foarde, Steve Martin
2006 Winter Meeting
Issues Related to UV Application in the HVAC Community
Sponsor: TG2 UV Air and Surface Treatment
SPC Liaison: Richard A Charles, P.E., Fellow, Presidential Member, Consultant, Oakland, CA
Moderator: Morton H. Blatt, Fellow, Energy Utilization Consultant, Mountain View, CA
There is growing interest in the HVAC&R community regarding use of ultraviolet lighting systems for air, surface and water disinfection. TG.2UVAS can respond to this interest and corresponding needs and concerns by determining what is needed in terms of UV standards, application information and research. This forum explores the needs and concerns surrounding UV technologies and provides a framework for future task group activities and how to coordinate these activities within the industry and ASHRAE.
Field Test Results for UV Systems
Sponsor: TC 02.03 Gaseous Air Contaminants and Gas Contaminant
SPC Liaison: Kenneth W. Cooper, Ph.D., P.E., Fellow, PoolPak International, York, PA
Chair: Morton H. Blatt, Fellow, Energy Utilization Consultant, Mountain View, CA
A forum at ASHRAE's 2004 Annual Meeting, What Work Needs to be Done to Properly Apply UVC Lights?, showed that available UVC performance information was largely anecdotal and there was a need for well-documented field performance information.
This seminar is designed to fill that need by providing five presentations on field performance results of UV systems for coil cleaning and air disinfection in schools, office buildings and hospitals by a building operator, a researcher and three manufacturers.
1. UVC Lamps for Coil Cleaning in California Classrooms Stacia Okura, RLW Analytics, Sonoma, CA
2. Use of UVC for Energy and Maintenance Savings and Improved Air Quality in a Florida Hospital Firenz Keikavousi, Member, Florida Hospital, Orlando, FL
3. Turn on the Light to Energy Savings Derald Welles, Member, Steril-Aire, Liverpool, NY
4. Use of Medium Pressure UV Air Disinfection in an Office Building Sam Speer, P.E., Catalyx Technologies, Media, PA
5. Use of UVC to Reduce Energy Use and Maintenance in HVAC Systems David Witham, P.E., Member, Ultraviolet Devices Inc, Valencia, CA
ASHRAE 2014 Annual Conference - June 28 - July 2, Seattle, Washington, USA
The TC 2.9 Meeting Schedule (along with other UV-related meetings) is as follows:
  • TC 2.9 Program, Handbook, and Standards Subcommittee Meetings
    Sunday, June 29, 2014 at 08:00-12:00 in Boren (4-Union St Tower, Sheraton)
  • TC 2.9 Research Subcommittee Meeting
    Monday, June 30, 2014 at 08:00-10:00 in Boren (4-Union St Tower, Sheraton)
  • TC 2.9 Ultraviolet Air and Surface Treatment Main Committee Meeting
    Monday, June 30, 2014 at 10:00-12:00 in Boren (4-Union St Tower, Sheraton)
  • SPC 185.1 MOT/UVC Lights for Use in Air Handling Units or Air Ducts to Inactivate Airborne Microorganisms
    Saturday, June 29, 2014 at 08:00-12:00 in (4-Pike St Tower, Sheraton)
  • SPC 185.2 MOT/UVC Lights for Use in HVAC&R Units or Air Ducts to Inactivate Microorganisms on Irradiated Surfaces
    Saturday, June 29, 2014 at 12:00-15:00 in (4-Pike St Tower, Sheraton)
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