Oasis® OH-5 Plus+ Guitar Humidifier
While the original Blue Oasis® provides sufficient humidity in many environments, it is not effective everywhere. The humidity demands of the desert, mountain states or frigid north exceed the humidification capacity of the OH-1. For this reason, we have developed the OH-5 Plus+ humidifier. The OH-5 Plus+ is the same size and shape as the original blue Oasis®, but is has a different liner which provides 50% more humidity output. Because the OH-5 Plus+ is the same size as the original Blue Oasis® and it has 50% greater humidity output, it will be necessary to refill the Oasis® OH-5 Plus+ more frequently than the original Blue Oasis®. Use the OH-5 when the environment outside the case has a relative humidity of 25% or less. Each OH-5 comes with a stabilizer bar for mounting the OH-5 humidifier and a 10 cc syringe for distilled water filling control.
Because tap and bottled water have dissolved minerals that can clog the liner, distilled water is recommended to extend the useful life of your humidifier.
I recently bought the Oasis humidifier and hygrometer for my new Seagull guitar and TRIC case. The Oasis is too tall for the case and it will not close. I noticed this issue mentioned on your website. I was going to return the Oasis, but I found a simple solution for installing it - a rubber band. It's pretty secure- you can shake the guitar forcefully, and the Oasis will wobble, but not fall out or hit the insides. It doesn't take any longer than the normal install, nor is it more difficult, once you learn how to not drop the rubber band! The Oasis and hygrometer are working great! Love your products, and I hope this info is helpful.One other potential solution is to use the ukulele stabilizer bar rather than the guitar stabilizer bar.
Thanks, Chris Decker, Brooklyn, NY