CannaGrowR14 said:

According to Phresh Filters calculator you need only about 208 cfms to exhaust your air in your 5'x5'x7'

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Tomcat said:

Does that calculation take into account the wattage or just air exchange?

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CannaGrowR14 said:

I really don't know, I'm pretty sure it's just a air exchange calculator.

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Tomcat said:

Thanks for the assistance. That was for the air exchange in the actual room. Still trying to figure out what size fan I should run for cooling the actual light.

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