As part of a comprehensive approach to mitigate COVID-19 risk on campus, building air ventilation and filtration have been evaluated and optimized consistent with Centers for Disease Control and Prevention (CDC) and American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) guidelines.

There are a variety of heating, ventilation, and air conditioning (HVAC) systems used on campus requiring independent evaluation and optimization strategies. Danforth Maintenance Operations proactively monitors the performance of these systems, conducts preventative maintenance and ensures systems operate as designed.

In addition, Danforth Maintenance Operations in partnership with Environmental Health and Safety (EH&S) and Infectious Disease, performed a review of HVAC systems serving campus buildings in 2021. In most cases, existing HVAC performance along with proactive operation and maintenance measures were determined to meet the CDC and ASHRAE performance guidelines. Additional measures were implemented in locations that did not meet performance expectations, including: upgraded filtration, extended run time of air systems, increased outdoor air supply, and deployment of portable air filtration units.

Danforth Maintenance Operations and/or EH&S staff also respond directly to any concerns reported by building occupants. Additional ventilation evaluations and improvements will be conducted as needs arise or new information is learned. To report any concerns, contact Danforth Facilities Customer Service at 314-935-5544.