D'Addario Humidipak Automatic Humidity Control System for Guitars

General

With D'Addario's Humidipak Automatic Humidity Control system, you won't have to worry about potentially harmful fluctuations in humidity again. Thanks to the Two-Way Humidity Control Technology, the system adds or absorbs moisture as needed to maintain an optimum humidity level of 45% to 50% inside your guitar case, countering cracks in the finish as well as the warping of the neck. Simply place one Humidipak beneath the headstock before draping a second over the strings and into the soundhole and voilà: your guitar can be super-safely stored inside your guitar case.

designed to restore and maintain an optimal humidity level. Not designed to dehumidify highly humid surroundings.