Healthcare HVAC Design: ASHRAE 170 Ventilation Requirements, Pressure Relationships, and Air Changes
ASHRAE 170 minima: OR 20 total / 4 OA ACH, MERV 16. Waiting rooms 12 total ACH, not 20. Makeup air is outdoor ACH vs total ACH.
ASHRAE 170 minima: OR 20 total / 4 OA ACH, MERV 16. Waiting rooms 12 total ACH, not 20. Makeup air is outdoor ACH vs total ACH.