FreemTools

Free Online Tools

HVAC Filter Pressure Drop Calculator

Airflow (CFM) *

Filter Width (in) *

Filter Height (in) *

Filter Depth (in) *

1

2

4

MERV Rating *

8

11

13

16

Filter Condition *

clean

lightly_loaded

moderately_loaded

heavily_loaded

System External Static Pressure (in. w.g.) *

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