Room Pressurization Calculator

Calculate airflow for pressure control

Room Dimensions

Pressure Requirements

Typical door gap: 0.05-0.15 sq ft

Airflow Requirements

Supply Air --
Exhaust/Return Air --
Pressure Offset --
Room Volume --
ACH Airflow --
Leakage Rate --

Common Requirements

Room Type Pressure Min ACH
Operating RoomPositive15-20
AII RoomNegative12
PE RoomPositive12
Pharmacy (IV)Positive30
LaboratoryNegative6-12