Myths of Fume Hood Control

David Ruhland, TSI, Inc.

Fume hoods are the heart of laboratories with intensive chemical use. Their impact on user safety and HVAC energy has been well-documented. Evaluating fume hood control methodology can be a critical aspect of laboratory HVAC controls. This presentation will define key parameters of fume hood control performance and compare how different control methods meet these parameters.

Learning Objectives

  • Understand how different fume hood control strategies work;
  • Recognize what environmental disruptions affect fume hood control;
  • Understand how different fume hood control strategies respond to environmental disruptions; and
  • Be able to choose an optimal fume hood control system.


David Ruhland is a Product Manager for TSI. He has over 20 years of laboratory and healthcare HVAC experience, having worked on projects located on 5 of the 7 continents. Dave is also a member of ASHRAE.


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