I recently just bought a Dehumidifier and was wondering what is the ideal humidity % for preserving my National Geographic Magazine Collection?
"Keep books in rooms with relatively low humidity. In very hot climates, books can start to warp. Ideally, you should keep the relative humidity around 35%. Humidity causes binding to warp, paper to curl, pages to mold..."
Thanks for your advice!
Call LOC, and they will tell you the best humidity for books and magazines.