how to cool grow room

have 3' x 3' x 7' closet --400watt MH lite with enclosed glass on it --95 cfm fan attached to can fan filter which blows warm air from lite out of the room--have
induct fan to bring in air from outside only 3 feet a way --room temp is high 80s w/25 % humidity --ouch!! portable ACs are very expensive --can't sleep in a cool room just to cool the grow room--what to do? thanks for the help.

get bigger fan with higher cfm...you can run co2 in high 80s but 25%rh is way to low. maybe look into foliar feeding or investing into used humidifier on craigslist

Bigger or additional fan should help. Humidifier is one way to go. Keep in mind if you increased your cfm fan then most likely will end up with a drier room. You could place a bowl of water in the area to evaporate. Make sure it has been de chlorinated because that stuff will smell like a pool if not.

I know this one dude who just soaked some washcloths in luke warm water, rolled them up and placed them on his buckets right under the plants to help increase his humidity. The drawback was you had to switch them out every couple hours to keep the moisture up.

Hope this sparked some creative juices.

i can get a good humidfier w/thermostat for 120 bucks --will that bring the temp down some? -- I only need a 5 degree drop to be ok

Humidifier will bring relative humidity up.. you want between 40-60RH. Stronger fan will bring temps down but also lower humidity aswell as caregivr said.