i have a room 10ft long and 4ft wide and 8ft in hieght, i have 2 400watt hps lights and fresh potted cuttings! i have a nice airflow but humidity is really low, 27%, if i was to get a cheap humidifier would it raise it at all??? the in and out let are quite small and i think there perfect size for a room to try keep moist in the air!!! any help would be apreciated like a free bag of weed lol