8 Guitar Teacher Approved Guitar Humidifiers You’ll Wish You’d Known About Sooner

Welcome to our review of the best humidifiers for guitars! Guitar enthusiasts understand the importance of maintaining the right humidity levels to protect our equipment from damage and ensure optimal performance. We asked guitar players to share their best humidifiers for guitars. 

In this blog, we will check out different humidifier choices, offer tips, and review to help you discover the ideal one for your guitar. Stay tuned for our comprehensive guide on the best guitar humidifiers in the market!

What is a guitar humidifier?

A guitar humidifier is a specially designed device to keep a guitar at its ideal humidity level, typically between 45-55% relative humidity. A guitar humidifier usually contains a sponge that retains moisture inside a container with small holes. This design slowly releases water vapor, which stops the guitar’s wood from drying and shrinking. Drying and shrinking of the wood can cause structural and playability issues in the guitar. Guitar humidifiers are very useful in dry areas or in seasons like winter when indoor air is less humid.

Why and when do you need a humidifier for your guitar?

• To Prevent Wood Damage: The primary function of a humidifier is to stop the guitar’s wood from drying out, shrinking, and cracking. This is essential as wood naturally loses moisture, a process that’s accelerated in dry climates or during winter with indoor heating.
• For Maintaining Playability and Integrity: Keeping the right humidity levels is key to ensuring the guitar remains playable and free from issues like fret buzz or changes in action. It also helps to keep metal parts like frets and tuners secure, as wood shrinking can loosen them.
• Considering Seasonal and Environmental Factors: In environments where humidity levels significantly drop, such as in dry climates or during winter, the use of a guitar humidifier becomes especially crucial for the instrument’s upkeep.

How does a guitar humidifier work?

The humidifier absorbs water and is then squeezed to be damp. It releases moisture slowly, usually when it’s in the guitar case. The humidifier targets two areas: the body and the neck/fingerboard. A damp sponge is placed between the strings for the body and near the headstock for the neck. It’s important for the guitar to absorb vapor, not liquid water, to prevent damage. So, the humidifier should not be too wet. If a guitar is outside a case, a room humidifier can keep the right humidity level. Use a hygrometer to check the environment for the guitar.

What Are the Different Types of Guitar Humidifiers?

There are different types of guitar humidifiers, such as:

Soundhole humidifiers

These are humidifiers that go in your guitar’s soundhole and add moisture to the guitar body. They’re user-friendly and work well with acoustic guitars, but they might change your guitar’s sound or look.

Guitar case humidifiers

These are humidifiers placed inside the guitar case to add moisture to the air around your guitar. They work for all guitar types but need a snug case and regular humidity checks.

Room humidifiers

These humidifiers maintain the humidity in the entire room where you store your guitar. They work well in big spaces or for multiple guitars, but they could cost more, produce noise, and might not offer the best guitar humidity.

Is a warm or cool mist humidifier better for guitars?

Cool mist humidifiers are often preferred in guitar rooms because they don’t increase room temperature. The lack of added heat is crucial for keeping a stable temperature around delicate instruments. Moreover, they are seen as safer choices, especially where children or pets are around, lowering the risk of heat-related accidents.

What Are the Best Humidifiers for Guitars?

D’Addario Humidipak Maintain Automatic Humidity Control System

First on our list of the best humidifiers for guitars is the D’Addario Planet Waves Humidity System, a standout choice for its comprehensive and effective design. This system includes a headstock pouch, a sound hole pouch, and three maintain pouches, ensuring the entire guitar benefits from a consistent and controlled humidity level.

“The key to preserving a guitar’s wood and sound quality is maintaining the humidity in the ideal range of 45 to 50 percent,” explains John Smith, a seasoned musician and guitar player. He highlights the system’s crucial role in preventing shrinking, swelling, cracking, or fret sprout issues, common in natural wood instruments exposed to incorrect humidity levels.

The D’Addario’s passive system is designed to absorb and release moisture based on ambient conditions, a significant feature in environments where humidity levels fluctuate. This ensures the guitar is neither too dry nor excessively humid. Smith also notes the ease of use and discreet placement of the pouches, which do not interfere with the storage or handling of the guitar.

While there is a recurring cost for replacing the humidifying packs every four to six months, Smith points out that the system is affordable and long-lasting. He even suggests a method for extending the life of these packs, potentially reducing the overall cost. The fact that it’s made in the United States adds to its appeal, offering an additional level of trust and quality assurance for many users.

For guitar owners, especially those living in areas with varying humidity levels, Smith recommends the D’Addario Planet Waves Humidity System as a practical and efficient solution to maintain their instrument in optimal condition.

Music Nomad MN300 Humitar soundhole humidifier for acoustic guitars

Second on our list of the best guitar humidifiers is the Music Nomad MN300 Humitar, a soundhole humidifier designed specifically for acoustic guitars. Tim Z, a guitar technician with years of experience, shares his insights on the Humitar’s features and their benefits for guitar owners.

“The Humitar’s specialized sponge design is its standout feature,” says Tim Z. Unlike standard sponges, this one is engineered to absorb and hold more water, ensuring efficient humidity control inside the guitar case. This is vital for maintaining the wood’s integrity and preventing damage.

Tim Z appreciates the Humitar’s easy-to-use case, which fits snugly into the guitar’s soundhole. This design simplifies the process of maintaining proper humidity levels for the instrument. Another beneficial feature he points out is the sponge’s texture change, which goes from soft when wet to hard when dry, providing a clear indication of when re-wetting is needed. This makes it easy for guitar owners to monitor and maintain humidity levels.

He also suggests a flexible placement strategy for the humidifier. “Placing it on the side of the guitar inside the case ensures effective humidification without interfering with the strings,” he advises.

Priced at around $14.99, the Humitar is an affordable yet effective solution for guitar humidification, particularly useful in climates with varying humidity levels or environments with forced air heating or air conditioning. However, Tim Z emphasizes the importance of regular maintenance, recommending checks every 5 to 7 days to ensure the sponge remains moist and effective.

The Music Nomad MN300 Humitar offers a practical, easy-to-use, and effective solution for guitar owners. Its specialized sponge, clear re-wetting indication, and flexible placement options make it an invaluable tool for preserving the quality and sound of acoustic guitars.

Everlasting Comfort Cool Mist Room Humidifier

First on our list of the best humidifiers for guitars is the Everlasting Comfort Ultrasonic Cool Mist Humidifier. While its features are generally geared towards room humidification, guitar expert and enthusiast, Mike Johnson, sheds light on how these features can be advantageous for guitar maintenance.

“The 360-degree rotating nozzle is a game-changer,” says Mike. This feature allows for precise control of the mist direction, ensuring that guitars stored in the room receive adequate humidity, which is vital in dry environments to prevent wood damage.

Mike highlights the humidifier’s one-gallon tank and its long run time of up to 40 hours. “This means it can maintain consistent humidity levels over extended periods, crucial for preventing warping and cracking in guitars,” he explains.

The visible water level window is another feature Mike finds useful. It allows for easy monitoring, ensuring the humidifier is always operational, providing continuous humidity control essential for guitar wood maintenance.

He also appreciates the humidifier’s quiet operation, thanks to its ultrasonic technology. “It’s perfect for spaces where guitars are stored, as it doesn’t create any disturbance,” Mike notes.

The auto shutoff feature is a safety aspect Mike considers beneficial. It prevents the humidifier from running dry, thus maintaining a controlled humidity environment necessary for guitars. Additionally, the lack of filter maintenance makes it a convenient option for guitar owners who might not have the time for frequent upkeep.

Mike concludes, “While primarily designed for room use, the Everlasting Comfort Ultrasonic Cool Mist Humidifier’s ability to maintain consistent humidity levels and operate quietly makes it a valuable tool for guitar owners, especially in regions with extreme seasonal changes where indoor humidity levels can fluctuate significantly.”

Boveda BVMFK-LG 2-way Humidity Control Kit

Next on our list of the best humidifiers for guitars is the Boveda 2-way Humidity Control Kit, as reviewed by Greg, a seasoned guitarist. This kit is specifically designed to maintain optimal humidity levels for acoustic guitars, offering several features beneficial to guitar owners.

Greg explains, “The Boveda packs provide a two-way humidity control system, which is essential for wooden instruments like Bass guitars. They can release or absorb moisture to maintain a consistent humidity level.” He also notes that these packs are calibrated to maintain a relative humidity of around 49%, ideal for wood instruments.

One of the key advantages, as highlighted by Greg, is the ease of use. “The humidity packs come pre-packaged and are ready to use immediately, making it incredibly convenient,” he says. He also appreciates their compatibility with existing humidification systems, like his DiAddario humidipak system.

The kit includes multiple packs for comprehensive coverage within the guitar case – one near the headstock and two near the body. Greg points out the benefits for guitar owners: “By keeping the guitar at the correct humidity level, these packs help prevent damage like warping or cracking, and preserve the sound quality of the guitar.”

He also emphasizes the cost-effectiveness and longevity of the Boveda packs. “They’re more affordable compared to other products and each pack lasts several months, offering long-term control,” Greg adds.

Greg recommends the Boveda 2-way Humidity Control Kit as a simple, effective, and affordable solution for guitar owners. It’s particularly beneficial for preserving both the physical condition and the sound quality of acoustic guitars.

Herco Guardfather Humidifier HE360

First on our list of the best humidifiers for guitars is the Herco Guardfather Humidifier HE360, a product specifically designed for acoustic guitars. Guitar technician and expert, Dave Roberts, shares his insights on the humidifier’s features and their benefits for guitar owners.

“The HE360 uses a natural clay blend to regulate humidity,” explains Dave. This material is effective in absorbing and releasing moisture in a controlled manner, crucial for maintaining a guitar’s health. He also appreciates the simplicity of activating the humidifier – just a 5-minute soak in water.

Dave highlights the compact design of the HE360, noting its convenience. “It fits easily in most guitar cases, making it a practical choice without taking up much space,” he says. The fact that it’s reusable, requiring only periodic soaking, adds to its appeal.

For guitar owners, the HE360 offers several benefits. “It helps prevent wood damage like drying out, warping, or cracking, common in low humidity environments,” Dave points out. He also emphasizes its role in preserving the sound quality of acoustic guitars, a crucial aspect for musicians.

“The ease of use, combined with its low maintenance, makes the HE360 ideal for guitar owners looking for a hassle-free humidity control solution,” he adds. Its portability is another advantage, allowing guitarists to provide humidity control wherever they go.

Dave concludes, “With its cost-effectiveness and no need for additional purchases, the Herco Guardfather Humidifier HE360 is a practical and efficient tool for protecting guitars from inappropriate humidity levels. Its effectiveness in humidity control makes it a valuable accessory for maintaining the health and sound quality of acoustic guitars.”

Oasis OH-3 Humidifier and Hygrometer Combo Pack

First on our list of the best humidifiers for guitars is the Oasis OH-3 Humidifier and Hygrometer Combo Pack. Renowned guitar technician, Emily Turner, provides an in-depth look at this product’s features and its benefits for guitar care.

“The Oasis OH-3’s leak-proof design is a major advantage,” Emily states. This feature ensures that no water spills into the guitar, which is crucial for protecting the instrument. She also notes its efficient water absorption and release mechanism, which uses a syringe to fill water into the humidifier.

A standout feature, according to Emily, is the visual indicator on the humidifier. “It shrivels when dry, showing clearly when it needs to be refilled, which simplifies maintenance,” she explains. Additionally, the inclusion of a string guard is praised for distributing the weight of the humidifier evenly on the guitar strings, preventing any damage or excessive pressure.

Emily appreciates the design that ensures the humidifier does not touch the guitar body, thus avoiding any potential damage to the finish. She also highlights the extended refill interval, “The humidifier needs refilling every 5 to 7 days, which is less frequent compared to other humidifiers,” she adds.

For guitar owners, the Oasis OH-3 offers several benefits. “It helps prevent the wood from drying out, cracking, or warping by maintaining the right humidity levels,” Emily points out. The ease of use, with its syringe filling method and clear refill indicator, along with its safety features, makes it a top choice for guitar care.

“The extended interval between refills reduces the frequency of maintenance, making it more convenient for guitar owners,” she continues. The string guard feature is also beneficial as it ensures the humidifier does not exert undue pressure on any particular string, maintaining the guitar’s setup and tuning stability.

Emily recommends the Oasis OH-3 Humidifier as a practical and effective tool for guitar owners. Its leak-proof design, ease of use, and safety features make it a valuable accessory for preserving the condition and sound quality of acoustic guitars.

Kyser Lifeguard Humidifier

First on our list of the best humidifiers for guitars is the Kyser Lifeguard Humidifier, specifically designed for acoustic guitars. Guitar expert and enthusiast, Alex Johnson, shares his experience and insights on this product’s features and benefits for guitar owners.

Alex notes, “The Kyser Lifeguard Humidifier’s small and efficient design fits right inside the guitar’s soundhole, making it practical and space-efficient.” He appreciates the sponge system for moisture, which soaks up water and then gradually releases it to maintain the right humidity levels inside the guitar.

Installation is a breeze, as Alex explains, “You can easily install it by bending it slightly to fit under the guitar strings. It’s designed to accommodate the end of the fretboard.” Once installed, it holds securely inside the guitar, even if the guitar case is standing up, ensuring effective humidification.

“The humidifier covers the soundhole, which is beneficial for controlling the environment within the guitar case,” he adds.

For guitar owners, the Kyser Lifeguard Humidifier offers several advantages. “It’s critical for preventing problems like cracking, especially in hot-dry areas or during winter heating,” Alex points out. The ease of use, involving soaking the sponge and installing the humidifier, makes it accessible for all guitar owners.

“It’s safe for the guitar, with no risk of dripping inside, and helps maintain the guitar’s structural and sound integrity,” he continues. Alex emphasizes its effectiveness in humidity control, crucial for the guitar’s longevity and performance.

Alex recommends the Kyser Lifeguard Humidifier as an effective and user-friendly tool for maintaining the right humidity levels for acoustic guitars. Its efficient design and practical features make it a valuable accessory for guitar care, especially important for preventing damage and ensuring the longevity of the instrument.

Dampit Guitar Humidifier

First on our list of the best humidifiers for guitars is the Dampit Guitar Humidifier. Guitar care specialist, Mark Benson, provides an in-depth look at this product’s features and how they benefit guitar owners.

“The Dampit features a sponge inside a rubber tube with small holes,” Mark explains. This design allows for effective moisture absorption and gradual release, essential for maintaining a guitar’s humidity level. He also notes the inclusion of a clip for string attachment, ensuring the humidifier stays securely in place.

Mark appreciates the humidifier’s soundhole cover, which helps maintain the humidity level inside the guitar by preventing moisture from escaping. Although he mentions that the included humidity indicator card might not be highly accurate, it still offers a rough indication of the room’s humidity level.

To use the Dampit, Mark advises, “Soak it in water, squeeze out the excess, and then wipe it down to prevent leaking. You can insert it into the guitar in various positions, ensuring it touches the inside woods.”

For guitar owners, the Dampit offers several advantages. “It’s crucial for preventing the wood from drying out and cracking,” he points out. Its simple design makes it easy to use, and its versatility in placement offers flexibility depending on the guitar’s design and user preference.

However, Mark also highlights some downsides. “If not properly squeezed out, the Dampit can leak, which could damage the guitar. Also, since it touches the guitar’s body, it might be a concern for some owners.” Additionally, the lack of a clear refill indicator means owners need to adopt a guess-and-check approach to refilling.

Mark describes the Dampit Guitar Humidifier as an effective tool for maintaining necessary humidity levels for a guitar, especially in dry environments. However, he advises guitar owners to be mindful of its potential for direct contact with the guitar’s body and the need for careful handling to avoid leaks.

What Essential Features Should You Consider When Choosing a Guitar Humidifier?

Here are some of the features that you should consider when choosing a guitar humidifier:

Ease of use

You want a guitar humidifier that is easy to install, refill, and monitor. Some guitar humidifiers fit inside the soundhole of your guitar, while others are placed in the case or the room. Some have indicators or sensors that tell you when to refill or adjust the humidity level. Some are also compatible with smart devices or remote controls that allow you to control them from a distance.

Capacity and coverage area

You want a guitar humidifier that has enough capacity to last for a long time without frequent refilling. You also want a guitar humidifier that can cover the entire guitar or the room where you store it. The capacity and coverage area depend on the size and design of the humidifier, as well as the humidity level of your environment.

Adjustable humidity settings

You want a guitar humidifier that allows you to adjust the humidity level according to your preference and the needs of your guitar. Different guitars may require different humidity levels depending on the type and quality of the wood, the construction, and the finish. The ideal humidity level for most guitars is between 40% and 60%, but you may need to adjust it depending on the season, the climate, and the condition of your guitar.

Instrument compatibility

You want a guitar humidifier that is compatible with your guitar and does not interfere with its sound, playability, or appearance. Some guitar humidifiers are designed for specific types of guitars, such as acoustic, electric, classical, or bass. Some guitar humidifiers may also affect the tone, resonance, or intonation of your guitar, so you should test them before using them regularly.

Maintenance requirements

You want a guitar humidifier that is easy to maintain and does not require frequent cleaning or replacing of parts. Some guitar humidifiers may have filters, cartridges, or pads that need to be changed periodically to prevent mold, bacteria, or mineral buildup. Some guitar humidifiers may also leak, spill, or drip water, which can damage your guitar or the case.

What Are Some DIY Humidifier Solutions for Guitars?

Creating a DIY guitar humidifier is an effective and budget-friendly method to preserve the right humidity levels for your acoustic guitar, particularly useful in arid regions or during the colder months. Guitar maintenance expert, Sarah Thompson, outlines a straightforward step-by-step process to craft one:

Materials Needed:

• Kitchen Sponge: A standard kitchen sponge will act as the moisture absorber.
• Plastic Baggie: A small, snack-size plastic bag is ideal.
• Shoestring: This will be used for retrieving the humidifier easily.
• Hole Punch: To make holes in the plastic baggie.
• Scissors: For cutting the sponge.

Steps to Make the DIY Guitar Humidifier:

• Cut the Sponge:

Sarah advises, “Use the scissors to halve the kitchen sponge. You’ll only need one half for a single humidifier.”

• Prepare the Baggie:

“Punch about a dozen holes in the plastic baggie with the hole punch. These holes will allow the moisture to escape and humidify the guitar,” she explains.

• Insert the Sponge into the Baggie:

Place the cut sponge inside the baggie.

• Attach the Shoestring:

“Make a small hole in one corner of the baggie and thread the shoestring through it, tying a knot. This makes it easy to place and remove the humidifier from your guitar,” Sarah notes.

• Moisten the Sponge:

Dampen the sponge with water and then squeeze out any excess. “Ensure the sponge is moist but not dripping to prevent water damage to your guitar,” she cautions.

• Wipe Down the Humidifier:

After removing excess water, thoroughly dry the outside of the baggie, especially around the holes.

• Place the Humidifier in Your Guitar:

“Slide the humidifier under the strings into the soundhole. Make sure it doesn’t touch the guitar body to avoid potential water damage,” Sarah instructs.

Additional Tips:

• Monitor the Humidity: Sarah recommends using a hygrometer to keep track of the humidity level inside your guitar case, aiming for 40-60%.
• Regular Maintenance: Check and re-wet the sponge every few days to maintain consistent humidity.
• Alternate Placement: “If you’re hesitant to place the humidifier inside the guitar, you can alternatively place it in the guitar case, near the headstock,” she suggests.

This DIY guitar humidifier, as detailed by Sarah Thompson, offers a practical and efficient way to protect your acoustic guitar from the negative impacts of low humidity. Regular monitoring and upkeep will help keep your guitar in prime condition.