D'Addario GH Acoustic Guitar Humidifier


89 out of 100. Incorporating 2950+ ratings and reviews.

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D'Addario GH Acoustic Guitar Humidifier

Gearank Recommendation

The D'Addario GH was on our recommended list for Guitar Humidifiers from February 2020 until February 2021.


To the uninitiated humidifying your guitar can be a challenging idea to wrap your head around, but in practice it can be as simple as sticking a sponge in your guitar case and letting natural processes take care of the rest. Case in point: D’Addario’s GH.

The D’Addario Planet Waves Acoustic Guitar Humidifier works by suspending a sponge inside of a plastic, non-drip casing.

As water evaporates from the sponge, it raises the ambient humidity inside of your guitar case. The wood then absorbs the excess humidity, keeping your instrument from drying out.

The Planet Waves Acoustic Guitar Humidifier is an affordable and no-frills way to keep your guitar safe from humidity fluctuations.


  • Weight: 0.3 oz
  • Suspension: Held By Strings
  • Longevity: Medium
Although this was previously on our recommended list there are now more highly rated options available in our guide to The Best Guitar Humidifiers & Case Hygrometers.

About the Author

Alexander BrionesAlexander Briones

I have been writing about and researching music gear for many years, all while serving as a music director at my local church. I engage in guitar playing and singer-songwriter stints, in addition to mentoring young musicians and teaching guitar and bass.