Fume hoods demand a large amount of energy, so much that the energy use of one fume hood could power 3 households over a single year. While air changes in the labs are required for safety reasons, you can take helpful steps for energy savings.
Shut Fume Hood Sashes
When not in use, decrease hood work opening. When working with chemicals, set the sash at the proper opening and never more than is recommended.
Store Chemicals and Equipment in Cabinets
Keep fume hoods clear of unnecessary items that can block ventilation.
Report Excessively High Inflows
If your fume hood has >150 ft/min inflow, turbulence and decreased containment can occur.
Turn Off BioSafety Cabinets
Shut sashes and turn off blowers and lights at night.
WE CAN WORK TOGETHER
Collaborate with Your Facility Manager
Explore the possibilities of installing occupancy sensors to turn off fume hoods at night. Such occupancy-based measures might work best for teaching labs, but could decrease energy use overall. Also ask about decommissioning hoods, switching to more efficient variable air volume fume hoods, or changing the temperature operating range of the lab space.