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Mechanical

Air Changes & Ventilation

Converts between room volume, air change rate and supply airflow, with an outdoor-air check per occupant.

ACH = (CFM × 60) / volume · ASHRAE 62.1 OA rates

Inputs

Results

Supply airflow required

720 CFM

Minimum outdoor air

88 CFM

Room volume
7,200 ft³
Outdoor air fraction
12.2 %
Airflow per area
0.9 CFM/ft²