norcalweedz
Active Member
thanks for all the great advice every one. another question though lol. my grow room is 4ft L x 2ft W x 8ft T, i went to this site on the internet to calculate how much cfm will be needed for a this room size. it came up with 80 cfm, that seems a bit low to me mabye not. it did not specify wether that was every min or two. any help would be great. also im using a 250 watt hps/mh light set up if that info was needed.