Untangling Code Spaghetti: Sustainably Designing Hazardous Exhaust Systems

Jeremy Lebowitz, Jensen Hughes

The provisions of building, fire and mechanical codes governing the design of laboratory exhaust systems are constantly evolving, and have long been the battleground for the opposing forces of occupant safety and sustainable energy usage. This presentation explores the major provisions impacting laboratory designers, options available for simultaneously achieving project goals involving these seemingly incompatible objectives, and success stories from commercial and institutional projects.

Learning Objectives

  • Identify major code provisions governing the design of hazardous exhaust systems and how they have evolved
  • Describe the major systems available for energy recovery
  • Explain benefits and drawbacks of the major energy recovery methods
  • Apply performance concepts to the design of future exhaust systems


Jeremy Lebowitz, PE, is the Vice President of Development for the industrial, manufacturing and laboratory vertical markets for JENSEN HUGHES. He assists clients in achieving code compliance and developing facilities and operational programs suited for hazardous material storage and use. His background in chemical and fire protection engineering informs stakeholder decision-making as they develop performance objectives which satisfy operational risk and safety criteria.


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