Oasis OH-6 Case Humidifier


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Oasis OH-6 Case Humidifier

Gearank Recommendation

The OH-6 earned a spot on our recommended list for Guitar Humidifiers from our first edition in November 2017 until September 2022.


Rather than just using water, the OH-6 actually uses water and “Humigel” crystals. The Humigel crystals function similarly to a sponge, but will last roughly a year (possibly longer) before they need to be changed. Currently, a replacement package of Humigel crystals is roughly $8 and contains enough crystals to refill your humidifier up to six times. Oasis humidifiers also collapse (scrunch up) when they dry out, making it easy to see when they’re ready for a refill.

The OH-6 also hangs off of the edge of your case. You simply slide a metal strip onto the edge of your case, which affixes your humidifier into one fixed position. If you’re worried that the metal strip won’t fit, Oasis also includes magnets to accomplish a similar purpose.

The Oasis OH-6 does require a bit more work initially than a sponge humidifier, but it will be a time saver in the long run. Having a humidifier which attaches to your case, rather than sitting in your strings, is also convenient.


  • Weight: 1.6 oz
  • Suspension: Hangs on the Edge of the Case/Magnet
  • Longevity: Long
To see which humidifiers we recommend see this guide: The Best Guitar Humidifiers & Case Hygrometers.