The result is clear. For a 1,000 sq ft room with an 8 ft ceiling and 4 ACH, you need a fan capable of delivering 533 CFM airflow. Let’s use the CFM calculation formula to see if we get the same number (this is the very formula used in the calculator): ...
It is the most accurate method and involves using specialized equipment like an anemometer to directly measure the airflow at a specific point within the duct or system. Measurements are in feet per minute, yielding the Specific CFM for that location. Repeat this process at various points in th...
The cubic feet per minute (CFM) of a gas describes its volumetric flow rate through a pipe or vent. The volumetric flow is a good measure of how much gas goes through the system, but it isn't the clearest way of picturing how quickly it moves. To picture this speed, calculate the li...