Make-Up Air CFM Sizing Calculator

Enter your parameters and click calculate
to view engineered sizing results.

Recommended Make-Up Airflow —

Airflow Range —

Pressure Strategy —

Suggested Blower Static —

Estimate only. Koven Air verifies airflow, static pressure, and pressure balance against your drawings before build.

Total exhaust airflow (CFM) Sum of all hoods, exhaust fans, and process exhaust in the space.

Building pressure goal

External static pressure of supply duct (in. wg)