Home > Fan and Filter Calculator
Calculate Fan and Filter Size
What size fan and filter will you need for your growing area?
Ideally you should generate a complete air exchange every 3 - 5 minutes
in your growing area. It is better to have too much air
circulation rather than
Enter your grow room measurements and the number of
grow lights you're using, then click in the box next to "Minimum CFM
Needed" to find the recommended CFM you'll need.