1000 watt HPS - CFMs needed to cool?

Just got my 1000 warr system, and im wonderng how many CFM fan should i get...

posted about a fan, but no one repied???

hoqw many cfms would i need to cool it, in a 9 x 9 x 8 =658 cu. ft. room

thanks

Is the light air coolable? Will this van be used solely to cool the light or vent the room as well?

Yeah its a 4" air coolable hood... will be used mainly for exhausting the light... got another exhaust for the room, along with intake...

thanks for a reply

Mine is a 6". I use an inline duct fan I got at Home Depot...fairly cheap. I think it is rated at 250 CFM....does a great job.......