how do I raise the humitiy?

[Potted]

I McGivered most of my grow room,including the floor, first I put a full size sheet of white coragated plastic (Home Depot) on top of that I put a large dog cage liner painted white on top of that I placed a two inch high rack painted white as well. I put a gallon of water into the cage liner and replace as it evaporates. Just my way! Lol

[Sockfilter]

Spot on Potted.. Yes I am always thinking of what I can do from home with what I have laying around. Great job..

[Paracelsus]

I read on someone else's grow journal that soaking and then wringing out a towel until its just more than damp and then hang it inside the grow room.
It worked for them to get out of the low 30's high 20's

[Cronk]

that would probably work well. I;m finding that the bigger my plants get and the more water I use, the higher the humidity goes. The towel would be good for first 3 or 4 weeks