Air Flow Calculations Form

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Enclosure No:

NPU No:

Measured Airflow (m/second)

Average Air Flow (m/second) v

Filter Face Size (m2) m

Air Volume Flow In m3/second v x m = f

Air Volume Flow In m3/hour f x 3600 = a

Enclosure No:

NPU No:

Measured Airflow (m/second)

Average Air Flow (m/second) v

Filter Face Size (m2) m

Air Volume Flow In m3/second v x m = f

Air Volume Flow In m3/hour f x 3600 = a

Enclosure No:

NPU No:

Measured Airflow (m/second)

Average Air Flow (m/second) v

Filter Face Size (m2) m

Air Volume Flow In m3/second v x m = f

Air Volume Flow In m3/hour f x 3600 = a

Enclosure No:

NPU No:

Measured Airflow (m/second)

Average Air Flow (m/second) v

Filter Face Size (m2) m

Air Volume Flow In m3/second v x m = f

Air Volume Flow In m3/hour f x 3600 = a

Enclosure No:

NPU No:

Measured Airflow (m/second)

Average Air Flow (m/second) v

Filter Face Size (m2) m

Air Volume Flow In m3/second v x m = f

Air Volume Flow In m3/hour f x 3600 = a

Enclosure No:

NPU No:

Measured Airflow (m/second)

Average Air Flow (m/second) v

Filter Face Size (m2) m

Air Volume Flow In m3/second v x m = f

Air Volume Flow In m3/hour f x 3600 = a

Enclosure No:

NPU No:

Measured Airflow (m/second)

Average Air Flow (m/second) v

Filter Face Size (m2) m

Air Volume Flow In m3/second v x m = f

Air Volume Flow In m3/hour f x 3600 = a

Enclosure No:

NPU No:

Measured Airflow (m/second)

Average Air Flow (m/second) v

Filter Face Size (m2) m

Air Volume Flow In m3/second v x m = f

Air Volume Flow In m3/hour f x 3600 = a

Enclosure No:

NPU No:

Measured Airflow (m/second)

Average Air Flow (m/second) v

Filter Face Size (m2) m

Air Volume Flow In m3/second v x m = f

Air Volume Flow In m3/hour f x 3600 = a

Enclosure No:

NPU No:

Measured Airflow (m/second)

Average Air Flow (m/second) v

Filter Face Size (m2) m

Air Volume Flow In m3/second v x m = f

Air Volume Flow In m3/hour f x 3600 = a

Total Airflow For All NPU's (m3/hour)

Required Airflow For 8 Air Changes/hour (m3/hour)