Oasis OH-5 Plus+ Guitar Humidifier


92 out of 100. Incorporating 700+ ratings and reviews.

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Oasis OH-5 Plus+ Guitar Humidifier

Gearank Recommendation

The OH-5 Plus+ earned a spot on our recommended list for Guitar Humidifiers from our first edition in November 2017 until September 2022.


The OH-5 Plus+ is designed for use in area’s with very dry climates, with a fabric that outputs roughly 50% more humidity than the ones used in Oasis’s other models.

Most musicians really aren’t going to need this humidifier, and in areas that are already relatively humid in the winter this humidifier may actually do more harm than good. This is why Oasis only uses this fabric on one model, rather than every model in their line.

Another thing to note about this humidifier is that it will also require more regular refilling than other Oasis humidifiers. This is because the OH-5 Plus+ outputs more humidity than the other humidifiers in their line.


  • Weight: 1.6 oz
  • Suspension: Held By Strings
  • Longevity: Medium
Although this was previously on our recommended list, there are now more highly rated options in our guide to The Best Guitar Humidifiers & Case Hygrometers.