What is air cooled, and is my fan supposed to hook to the light hood with ducting?

I thought using a fan, ducting, glass you air cooled the grow room?

NEVER MIND................I see you answered that ?
luvfriday Reviewed by luvfriday on . Air cooled HPS Light Be prepared, I have lots of questions today. I turn to farmers here that have no monetary interest, and have actually grown a thing or two. I purchased a vortex fan to air cool my grow room, forgive me for thinking this was a little fan that attached to my refelctive hood and get some ducting and I am done. So I bring the monster home after buying it a new shop sort of far away. Its no little fan, so I guess it does not attach to the hood, what have you used to air cool your grow rooms? Rating: 5