We attempt to use outside air whenever possible but outside air (up to 100%) is supplied based on varying factors like building duct pressure, flow and temperatures needs. Note:  All air regardless of whether it is outside or return air is always cycled back through the main MERV13 filters before it is supplied to the building.

Filters are scheduled quarterly and placed on a Preventive Maintenance schedule.

HVAC systems were upgraded in 2020 to MERV13 filters.  These filters are capable of catching virus size particles (including COVID-19).

Building HVAC systems are monitored by Building Automation Systems.  Alarms are sent to Facilities personnel if monitor points are out of established parameters (running, temp, filter flow, etc.).