Airclean ToolBox
A useful list of calculators and converters for common airflow and ventilation calculations

Volumetric Flow Rate Converter
Use the following calculator to convert your air volumes into other volumetric units.
Volumetric Flow Rate Converter
Volume Air Flow Calculator
This calculator will determine the volume flow through a duct.
Volume Air Flow Calculator
Air Change Rate Calculator
This calculator will calculate the number of air changes in a room.
Pressure Converter
Use the following calculator to convert your pressure into other units.
Pressure Converter
Air Speed through duct
This calculator will determine the air velocity through a duct..