Detail 01
Case humidifier, not soundhole
Raises humidity inside the closed case, so it only works when the guitar is actually cased up.
Product detailSKU #1274423038101
OasisOH-6 Case Humidifier
1/4
Independent shopping perspective
The Korena take
Small in-case humidifier for acoustic guitars in dry climates. Buy it if your instrument lives in a hard case through winter heating season.
Strong match
Who this is for
- Guitars stored in a hard case most of the week
- Winter heating season in cold, dry regions
- Cheap insurance against fret sprout and top cracking
Consider the trade-offs
When to look elsewhere
- Guitars that hang on a wall or live on a stand
- Humid climates where over-humidification is the real risk
- Anyone wanting a whole-room solution for several instruments
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Refillable design
You top it off with distilled water rather than buying replacement packets, so ongoing cost is near zero.
Detail 03
Compact size
Sits in the accessory compartment or case interior without pressing against the finish.
Detail 04
Passive evaporation
No power, no electronics. Output tracks how dry the case air is rather than a set number.
Final check
Know before you order
- 01Add a hygrometer — this does not tell you the humidity level
- 02Use distilled water; tap water leaves mineral deposits
- 03Check and refill weekly during heating season, more often in very dry air
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How often do I refill it?
Depends on how dry your air is. Roughly weekly during winter heating season, longer in milder conditions. Check it rather than guessing.
02Can I use tap water?
Use distilled. Tap water leaves mineral scale that clogs the unit over time.
03Will it work if I leave the case open?
No. It humidifies the enclosed air in a closed case. An open case vents to the room and the effect disappears.
04Does this work for electric guitars?
Electrics are far less sensitive to dry air than solid-wood acoustics. It won't hurt, but the need is much lower.
