Return to School Classroom Capacity

Classroom Capacity Considerations Based on Social Distancing and Ventilation Guidelines

APS follows ASHRAE 62.1 and 62.2, the standards for ventilation and indoor air quality, and refers to other guidelines such as the Harvard T.H. Chan School of Public Health Guide to Checking Ventilation Rates in Classrooms. Our goal is to maximize outside air changes and ventilation in all classrooms above the recommended 5 Air Changes per Hour (ACH).

  • All Direct Outside Air Systems (DOAS) have MERV-13 filters.
  • Any HVAC equipment that maybe upgraded to MERV-13 has already been or will be upgraded.
  • APS is providing Certified Room Air Cleaners (AHAM and CARB certified) that will provide the target minimum of 5 ACH for classrooms where equipment filters cannot be upgraded or where outside air changes do not meet standards.
  • APS encourages occupants to open windows when outside conditions permit to increase outside air. (i.e., humidity levels less than 60% and temperatures greater than 50 degrees F).
Elementary Schools Middle Schools High Schools and Secondary Programs
Abingdon Dorothy Hamm Arlington Community High School
Alice West Fleet Gunston Career Center
Arlington Science Focus Jefferson Langston
Arlington Traditional Kenmore New Directions
Ashlawn Swanson The Heights
Barcroft Williamsburg Wakefield
Barrett Washington-Liberty
Campbell Yorktown
Carlin Springs
Claremont
Discovery
Drew
Glebe
Hoffman-Boston
Jamestown
Key
Long Branch
McKinley
Montessori
Nottingham
Oakridge
Randolph
Taylor
Tuckahoe

DISCLAIMER: Each air chart is a living document subject to revisions based on local public health guidance and updates from CDC and ASHRAE. Occupancy has been reduced by the ASHRAE 62.1 code due to the number of outside air exchanges.