The Planet Waves HPK-01 Humidipak Automatic Humidity Control System is an easy to use system that will keep humidity levels of your acoustic guitar at the perfect percentage. It will maintain the optimal 45 to 50% of humidity by adding or absorbing moisture when needed.
How to use
The Planet Waves HPK-01 Humidipak Automatic Humidity Control System contains three Humidipaks. Place two of them in one of the pockets that comes with the system and hang it inside of the sound hole of your guitar. The other Humidipak goes into the second pocket and you’ll need to place that one at the headstock of your instrument. Keep your guitar inside of its case together with the Humidipaks, and the system will provide the optimal humidity levels.
There’s no need to refill the packs with water and the Planet Waves HPK-01 Humidipak Automatic Humidity Control System works all year round, so you don’t need to take your location or the weather into account when using it.
When the Humidipaks get hard, you’ll need to replace them with refill packs.