Developing a Fume Hood Design, Selection, and Operation Specification

Pam Greenley, Massachusetts Institute of Technology
Greg Muth, Tsoi/Kobus & Associates Inc.
Tom Smith, Exposure Control Technologies, Inc.
Jim Coogan, Siemens

Open plan laboratories, the availability of automated sensing and ventilation control technologies, and concerns about facility energy costs have all impacted the role of fume hoods in lab design in the 21st Century. These changes mean that relevant stakeholders need to reconsider traditional fume hood design goals and specifications. This session continues ongoing efforts to develop a basic guideline for selecting, specifying, testing and operating fume hoods for different lab environments. Rather than relying on a one size fits all approach and setting a single face velocity for all fume hood types the proposed guideline would evaluate how the hood is used, who is using the hood, available supply and exhaust quantities, energy saving targets, etc. to come up with recommendations for hood performance. We will investigate how to specify, procure and test hoods and how to manage ongoing testing and training after installation.

Learning Objectives

  • Determine the best materials of construction and hood features that impact maintainability for your hoods.
  • Evaluate the factors affecting performance and define required operating specifications and performance criteria.
  • Describe relevant test methods to ensure consistent operation following installation.
  • Determine the information users need to provide about their operation for optimal hood selection.


Pam Greenley has master's degrees in chemical engineering and industrial hygiene from the University of Michigan. She has worked at MIT for over 20 years and has extensive experience in the areas of laboratory ventilation, gas monitoring, semiconductor lab safety, and web-based training. She currently manages the Industrial Hygiene and Environmental Management programs at MIT. She has served on the AIHA's Laboratory Health and Safety and Ethics Committees. She teaches Laboratory HVAC and Energy Conservation courses for Eagleson Institute. She is a founding member of the I2SL New England chapter.

Greg Muth is a well-respected leader in the design and planning of sustainable laboratory and research spaces. An enthusiastic and thoughtful problem-solver, he relishes partnerships that engage all participants in the exciting process of discovery. As the founding president of New England's I2SL chapter, Mr. Muth excels in bringing people together to share and explore new ideas.

Thomas C. Smith is the President of Exposure Control Technologies, Inc. Mr. Smith is a leader in safety and energy management for research facilities. He specializes in helping laboratories provide safe, dependable and energy efficient operation of laboratory hoods and ventilation systems. He holds a BS degree in Mechanical Engineering from North Carolina State University and a MS degree in Environmental Engineering (Industrial Hygiene) from the University of North Carolina.

Jim Coogan, P.E., is a Principal in product development and applications at Siemens Building Technologies. In 30 years designing controls for mechanical systems, he has contributed to products ranging from room controllers to Internet-based interfaces. Jim has chaired several ASHRAE Committees, and was recently added to ASHRAE's list of Distinguished Lecturers. Mr. Coogan participates in programs with the I2SL and the Lab Safety committee of the American Industrial Hygiene Association.


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