i was having condensation problems in my tent so built a room with insulation and drywall. i am running 2k in 2 circles 24 plants total average 4 ft tall. lights are vert in cool tubes(no venting i use the heat to keep the room warm). i run my lights 8 at night to 8 in the morning. outside temps lows of 30-40 at night.daytime high of 50-60 average humidity 30 to 40% except when it rains which is rare.i am running co2 so its a sealed room. i have problem with condensation around the walls and my charcoal filter(only used to clean the smell and circulate the air) i also have an oscilating fan to circulate air. when the lights come on its so humid my glasses fog up. Do i need to run ventilation during the off hours? is that the problem? am i missing some thing?this is my first room i thought it was simpler with a room doesnt seem like it.Any insight or in put is greatly appreciated.