D'Addario Humidipak is the only maintenance-free, two-way humidity control system for guitars. It automatically maintains the optimum relative humidity level of 45% to 50% in your instrument case, eliminating the guesswork and potential damage of filling a humidifier. No more manual adjustments based on seasonal changes, geographical locations, temperature or other factors. Note: Humidipak is designed to restore and maintain instrument humidity. This product is not intended for dehumidification in high-humidity environments.
