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 too little.

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.

Enter Room Length:

Enter Room Width:

Enter Ceiling Height:

Enter Number of Lights:

Calculated Cubic Feet:

Minimum CFM Needed:

<--- tab to or click here for answer

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