To be honest it's up to you...Just remember if you go with thought number 2 you will have to worry about smells. Personally I would just attach it to both ends and not even have it pulling air out of the room....If not you can attach it to the exhaust just make sure you add a scubber.
Forwhat420 Reviewed by Forwhat420 on . 400 watt hps aircooling help Could someone link me up with info on how/the best way to aircool my 400 watt hps light... I currently have a cage fan extracting air straight from the hood but thats not doing good enough as temps are almost reaching 90 deg. Have a good Idea on how to do it just want to see some others and know how much cooler its actually going to make my space... Rating: 5