Those are great and inexpensive. I’m wondering if the following is okay? May seem like a funny question but I’m sure others wonder the same.
If I place the humidifier in the sound hold, and wring out the Sponge really well; is it safe to place the guitar, in the case, Upright, instead of horizontal? the sponge is well wrung out, so it won’t leak into the guitar, right?
Any input on this thought is appreciated