Drying is the biggest danger for any acoustic instrument. Dryness causes the wood to shrink. Because of the construction of a guitar the wood is locked up, so shrinking will cause cracks! By using a Damp-it humidifier the guitar keeps the same moisture level as when it was constructed.
The Damp-it ihumidifier is easy to use. The product is supplied by all new build Fern's acoustic guitars. If you are not sure about your own instrument, please let us know!