My room is in the corner of the house. The house was constructed in the 1920s. There is no insulation in the walls. My room is often humid. The sheets feel wet, and books curl. This morning, I waited until it stopped raining. I plugged in the space heater and turned on the air conditioner. I took a shower. When I came back, it was better, marginally. After work I need to get some DampRids®. I usually get 3.