Unlike refillable humidifiers, the Humidipak system provides true “two-way” purified humidity control by adding and removing moisture on demand. No more manual adjustments based on seasonal changes, geographic locations, temperature, or other factors.
The Humidipak by Planet Waves is a highly innovative product that offers the musician a fantastic way to ensure the longevity of their instrument. Humidipaks should be thrown away once they become firm, and can be replace using refills. They should be kept in dry sealed places.
Planet Waves is part of the D’Addario family of brands, famous for its innovation and quality, you can be sure that your guitar is equipped to the max.