A calculator for exhaust cfm

Here is a calculator I found to calculate the amount of exhaust needed in a grow room. You just need the dimensions of your room. Maybe this will stop some of the "how many cfm do I need for my..." There is also a light wattage calculator at the bottom of the page. Good luck!

http://cheaphydroponics.com/Merchant2/cfmcalc.htm

Awesome Thanks for link