Best Ukulele Humidifier

Best Ukulele Humidifier: Top Picks & Comparisons!

Solid wood ukuleles have the best sound, no doubt. However, you need to be careful with the solid wood instrument and you mustn’t let it dry out completely. The wood needs to have a certain level of moisture in order to stay structurally sound.  

If the wood dries out, your ukulele might crack or warp. Of course, this doesn’t necessarily have to happen, but there is a chance, and you don’t want to gamble with your expensive solid wood uke. 

The best way to maintain the proper humidity of your ukulele is by using a humidifier.  

Our top picks for the best ukulele humidifiers:

Our #1 Rated
D’Addario Accessories Humidipak Two-Way Humidification System – Automatically Adjusts to Maintain Constant 45% Relative Humidity Level Within Guitar Case – Protects Instrument from Humidity Damage
  • TWO-WAY HUMIDITY CONTROL - D'Addario Accessories Humidipak Two-Way Humidification System is the only maintenance-free two-way humidity control system for guitars. It automatically maintains the optimal 45-50% relative humidity level within your instrument case by adding or depleting moisture as necessary.
  • PROTECT YOUR INSTRUMENT - The patented two-way purified humidity control system protects your instrument against warping, cracks and other damage caused by lack of humidification. This system eliminates the guesswork and anxiety of maintaining your instrument's proper humidity level.
  • MAINTENANCE-FREE - Unlike refillable humidifiers, the D'Addario system is maintenance-free. It is long lasting and does not require any adjustments based on seasonal temperature changes or geographic locations. No water, no drips, no mess.
4 out of 5
In the Instrument parts and accessories Category


When to Use a Humidifier 

Generally, when the relative humidity is below 45% it can be dangerous to any acoustic instrument. However, the weather reports will give you the information about the relative humidity outside, and this is not very useful unless you plan on keeping your ukulele outside. 

Information that’s important for you is the humidity inside your house. Now, there are two main conditions that can cause a low humidity inside of your home.  

It can happen if you live in a high mountain region or a desert which are naturally arid regions or it can happen if you live in a cold climate and your heating system sucks all the moisture out of the air in your apartment.  

Since the weather reports are not very useful, the best solution is to get a hygrometer. A hygrometer is a small device that you can put in your gig bag or case and it will keep an eye on the relative humidity of your instrument. 

When the hygrometer shows that the relative humidity is below 45% it’s time to start using a humidifier. These devices are relatively cheap and the batteries seem to last forever so you don’t have to worry about that. 

Oasis OH-2 is one of the best hygrometers out there. It’s affordable, it’s easy to use, and it’s very accurate.  

What is a Humidifier 

A humidifier is basically a device that helps you maintain the optimal level of humidity so that the wood from which your instrument is made doesn’t wreck because of the weather changes. 

Ukulele humidifiers might sound a bit alien, but it is a very important device (especially in dry climates) that will keep your uke in shape for a long time. 

Why is Humidification Important 

Well, it has been seen how devastating effects can changing climate have on acoustic instruments. Dry winters and extreme temperatures always mean a low humidity and lack of moisture in the air and that can create a serious impact on your ukulele. 

If you don’t take proper steps on time, these conditions can seriously affect your ukes overall playability, sound, and performance.  

Not only that the humidification increases the longevity and the performance of your instrument, but it also keeps the value of your instrument in case you want to sell it at some point in the future. 

How Humidifiers Work  

Best ukulele humidifiers balance the overall humidity and temperature in the air surrounding your instrument.  

Most of the humidifiers are attached to a ukulele case or you insert them between your uke’s strings so they can keep the tonewood of your instrument well moistened. 

The humidifiers usually made of plastic with a sponge inside. Before you attach them to your ukulele case or the instrument itself, you need to moisten the sponge with distilled water.  

In combination with a hygrometer, humidifier helps you maintain the perfect humidity for your uke. 

What to Consider Before Buying a Humidifier 

Without a good humidifier, your instrument might lose its base easily and you will be left with a terrible tone. Since solid wood instruments are expensive you don’t want to leave it in such condition and waste your spent cash. 

Here are some of the most important things to consider when buying a humidifier for your beloved ukulele. 

  • The optimal humidity for your instrument is between 45 and 55 percent. Make sure that the humidifier you are buying releases a proper humidity to keep it at an optimal level. 
  • Also, make sure that the humidifier doesn’t release too much of the humidity because over-humidification can also be dangerous for your ukulele. 
  • Consider the climate conditions of the area you are living in. if you live in dry areas you might need to use the humidifier for longer periods of time. However, if you live in a colder climate you probably won’t have to use it so often. 
  • Make sure that you check your humidifier from time to time because if you leave it for a long time it can cause mold growth on your instrument’s wooden parts. 

Overall, what your uke need is a perfect balance of humidity. This will protect your instrument and extend its life. A good humidifier will prevent your instrument from damaging and keep it in proper condition.  

Reviews of the Best Ukulele Humidifiers

D’Addario Two-Way Humidification System

The Two-Way Humidification System, formerly known as the Humidipack is made by well-known company D’Addario. This is probably one of the best humidifiers you can find. It’s very easy to use and it doesn’t require almost any maintenance. 

This humidifier keeps the relative humidity in your ukulele case on an optimal 45-50%. It’s a mess and frustration-free because it’s not one of the refillable humidifiers. Instead, it uses soft mesh pouches that both remove and add moisture when needed, hence the name “two-way humidification system”. 

It provides unique “two-way” control over humidity and it allows you to remove or increase the moisture in your ukulele case.  

The mesh pouches will become firm after 2 to 6 months of use and that’s when you need to remove the pack and put in the new one. It’s really simple to use. 

However, this might be a downside for some users because you need to buy replacement packs every few months. On the other hand, it is really worth the money, because you get the perfect control over humidity in your case for just a few bucks per pack.  

This humidifier is perfect for ukulele players who dislike refillable humidifiers and would like a mess-free alternative. When it comes to price, it’s not very different than the other humidifiers except for the replaceable packs you need to buy every few months. 

  • Two-way humidification system
  • Mess-free
  • Extremely easy to use
  • No maintenance required
  • Affordable
  • Get it and forget it
  • You need to buy replacement packs every few months

Dampit Mandolin/Uke Humidifier

This one is probably the oldest humidification system on our list and it’s still widely used and praised. We can definitely say that it passed the time test. It’s basically a little hose that is designed to hydrate your ukulele or mandolin. 

The tube-shaped humidifier can be immersed in water, and after you dry it off, you can place the humidifier inside of your uke. It will keep the humidity level at the optimal level of 45-55%. 

One of the coolest features of this simple humidifier is the room humidity level indicator. It uses the color-changing spots placed on the side of the humidifier that will show you how humid your room is.  

Another cool thing about this particular humidifier is that you don’t have to remove it from your ukulele in order to play it. You can freely keep it inside of your instrument and play and there won’t be any changes in your uke’s tone.  

If you want the humidifier that will both humidify your ukulele and read the room’s humidity and you don’t want to remove it every time you want to play your uke and then put it back in afterward, this is the perfect choice for you. 

Furthermore, it’s really affordable and it’s a good investment because you can use it for a long time. 

  • Extremely simple to use
  • Lasts for a long time
  • Keeps the humidity at optimal level
  • You don’t have to remove it to play
  • Room’s humidity indicator
  • Very affordable
  • Doesn’t remove moisture

Music Nomad MN302 Humilele Ukulele Humidifier

The MN302 is fairly simple-to-use humidifier that fits in all ukulele sound holes because it’s placed between the strings where it securely rests. It features a sponge, which the company calls “Humid-I-Bar”, and the sponge holds a significant amount of water inside the drip-proof plastic casing. 

The sponge itself is also made of a material that doesn’t drip and it can hold up to ten times its weight in water. This means you won’t have to refill it so often. The sponge releases the moisture at an even pace and keeps the humidity at optimal 45-55% level. 

It’s quite easy to use and to tell when it needs to be refilled. All you have to do is simply pop open the top and touch the sponge. If the sponge is dry, it’s time for a refill. If the sponge is wet, leave it be. It’s really that simple. 

You can use regular tap water for refills but it’s better if you use distilled water if you want your humidifier to last longer.  

It’s simple to use, it requires almost no maintenance, and it’s cheaper than most of the other humidifiers. 

  • Simple to use, simple to refill
  • No drip and no mess
  • Releases the moisture at an even pace
  • Very cheap
  • Needs frequent refills
  • You must have a hygrometer to use with it

Oasis OH-18 Ukulele Humidifier

We all know how horrifying is an idea of humidifier leaking and damaging your ukulele. Well, the Oasis OH-18 is virtually spill-proof humidifier. It’s an amazingly simple little device that will keep your beloved ukulele humid during the dry season. 

The OH-18 is placed inside your ukulele’s sound hole, mounted on the stabilizer bar and keeps the humidity inside your uke’s body at optimal 45-55%.  

It’s very simple to use. You need the 10cc syringe to refill it and it will visually notify you when it needs a refill by crinkling up.  

The humidifier features two levels of protection and it won’t leak even if you overfill it. Thanks to the stabilizer bar it doesn’t touch your instrument’s body and cause any damage. 

When you refill this humidifier its best to wait 15 minutes so the crystals can absorb the water and turn it into the gel before you insert the humidifier in your ukulele. To extend the humidifier’s longevity use distilled water. 

  • Simple to use and refill
  • Two levels of protection against leaking
  • Stabilizer bar prevents it from touching your instrument’s body
  • Visually notifies you when to refill
  • A bit difficult to put it in and take it out of ukulele

Humidifier for Acoustic Guitars

Yes, it does say it’s for acoustic guitars, but this humidifier works great for ukuleles too. It’s designed to be put in the sound hole of acoustic guitars, classic guitars, or ukuleles and keep them properly humid. 

It’s actually specifically designed to fit those sound holes and it comes in 3 different sizes so you can choose according to your instrument’s sound hole. It slips under the strings and fits easily into the sound hole where it does its job. 

It will keep your uke nicely hydrated and the relative humidity at optimal 45-55% level. Not only that it moisturizes your instrument but it also absorbs the excess moisture if you live in a damp climate. 

This humidifier is more than simple to use and refill. All you have to do to refill it is submerge it into the water, wait one minute so it can absorb, shake the excess water off it, and you are ready to go. 

  • Extremely simple to use and refill
  • Comes in 3 sizes
  • Absorbs the excess moisture in case of dump climate
  • Fits acoustic guitars, classic guitars, and ukuleles
  • Doesn’t fit on smaller ukuleles

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As you can see, humidity is quite an important factor in your ukulele’s maintenance. If you don’t keep it at the optimal level it can seriously damage your instrument. All of the humidifiers listed above are doing their job properly, but the clear winner, in our opinion is the D’Addario Two-Way Humidification System.  

We choose this humidifier as the best because it both adds and removes moisture when needed. It will always keep the humidity at an optimal level and it doesn’t require refills. Yes, you have to buy replacement pack every few months, but at least you are not risking any spills that might ruin your instrument. 

After all, the replacement packs are not expensive but they are well worth the money. If you want the best humidification system for your ukulele, go with this one and you won’t regret it.