Air Flow Calculator

Air Flow Calculator Instructions:

Using the size of your containment and required air changes per hour (ACH), our air flow calculator is designed to assist you in choosing the best OmniAire machine for your application.

Chose which units of measurement are relevant; SAE or Metric, and then enter the sizes of the containment in the calculator. Click the CALCULATE button and the bottom of the calculator will show you the results of your input.

After calculating, compare the results with our reference list of OmniAire models. It will help to choose the perfect size for your needs. If you have any questions or would like any advice, please feel free to contact us. Follow this link for more reference material from OSHA concerning air changes per hour. OSHA

SAE Air Flow Calculator

Data Entry

Containment Length Feet
Containment Width Feet
Containment Height Feet
Air Changes Required Per Hour


Containment Total Volume Cubic Feet
Complete Air Change Every Minutes
Volume Required per Hour: Cubic Feet
CFM Requirement CFM



Miniforce 350 or 425
OA600V 150-600
OA800V 150-650
OA800PAC 100-650
OA1000V 300-950
OA1200V 150-1100
OA1200PAC 100-1100
OA1300V 300-1250
OA2000V 300-1900
OA2200 1000 or 2000