Skip to main content

4.16.1 Room Air Pressure in Labs

Research laboratories should be negative to the hallways and offices.  When positive air pressure occurs, more air is being supplied to the room than what is being removed by the fume hood or general exhaust.  This can result in air from the laboratory (including chemical vapors and dusts) being blown out into the hallway outside of the lab and chemical odors permeating the hallways and surrounding rooms. 

  • Ensure the entrance door to the laboratory is closed.
  • If you notice odors that seem to be escaping from a lab, then please contact your Building Coordinator for assistance.