Unlike Ray, I live in a part of the world where humidity, in the air, rules! My collection is in an air conditioned out-building but last summer I had a terrible problem with mildew on many of my paper shells! Because there are many other things in there that don’t like water (moisture), I thought a dehumidifier would be the way to go so I bought one.
This thing will suck the water out of the air at a steady flow (couple of gallons in 24hrs) but it is not energy efficient and the power bill is taking a noticeable rise! (The dehumidifier generates heat and the AC then has to work harder to offset the rise in heat!) I’m keeping the humidity level at less than 50% (45-47%) and there is no mildew growing but is that too low? Can I run the humidity level higher and hence save money on power? Just where should the humidity level be for storing paper shells without mildew issues?
Comments and suggestions will be appreciated. (Except I’m not moving in with Ray!) Experimentation to see at what level the mildew will begin to grow is not desired. Cleaning several hundred shells is not good on my nerves or the shells.