How To Use A Guitar Humidifier

Bad storage or care of a guitar can lead to damage to the instrument and of course this is not a good thing. So in today’s article, we would be teaching you how to use a guitar humidifier. 

Photo by Brandon Wilson on Unsplash

Photo by Brandon Wilson on Unsplash

Usually, when going to a guitar store to get a new guitar, the guitar is usually kept in a stable environment with controlled temperature and humidity. Once that guitar is bought, the onus now falls onto the buyer to keep the guitar humidified. 

Reduced moisture can cause a crack and wood shrinkage. Too much moisture isn’t good either. Your guitar should be kept at a humidity of about 40–50 percent

Electric guitars and bass guitars most times do not have problems related to the environment due to the solidity of their construction. However, because the acoustic guitar does,  it requires adequate care. Hence, the need for a guitar humidifier.

Importance Of A Guitar Humidifier

It Prevents Damage To The Body Of The Guitar

When there is increased moisture in the environment, your guitar can swell up or get bloated. Also when the environment where the guitar is stored is too dry, the soundbox of the guitar shrinks inwards. This leads to a compression of the guitar. 

A variety of issues can result from this including damage to the bridge of the guitar. In both cases of increased or no moisture, the guitar could get damaged so bad that it could become unplayable. A guitar humidifier would prevent this situation.

It Preserves The Sound Quality Of The Guitar

A very important part of acoustic guitars is the soundbox. The soundbox is the open portion of the guitar that produces the sound. 

When there is an alteration in the normal temperature of a guitar there is damage to the soundbox. Depending on the degree of damage, other parts of the guitar, like the neck, could be affected too. 

It Ensures Value For Money

We all want value for money with whatever we buy. Guitars cost quite a lot so it is very important you get value for your money. Guitar humidifiers help to prevent quick damage and ensure your instrument stays and functions for as long as possible.

Photo by Kenny Luo on Unsplash

How To Determine The Need For A Humidifier

It is important to know the humidity level of your guitar to know if a humidifier is necessary. To determine the humidity level of a guitar, a hygrometer is used. 

Place the hygrometer in-between the strings at the soundhole to measure the humidity of the guitar.

Types Of Guitar Humidifiers And Method Of Usage

There are three main types of guitar humidifiers: the soundhole humidifier, the guitar case humidifier, and the room humidifier.

The Soundhole Humidifier

This guitar humidifier usually covers the soundhole. It is a rubber tube that is placed on top of the strings and runs down into the guitar. Soundhole humidifiers can also be placed between the strings. 

They are the most popular type of guitar humidifier. They are affordable and easy to use. Soundhole humidifiers also work when the instrument is stored in a case. 

The Guitar Case Humidifier

As its name implies, this type of humidifier is put in the guitar case rather than on or between the strings. It can be used when the soundhole humidifier does not fit. 

The most common guitar case humidifiers are made of plastic or a material tube which makes it possible for water vapor to pass through.

The Room Humidifier

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The room humidifier is used if you have a large store or collection of instruments. It can also be used if you prefer leaving your guitar out. 

This humidifier ensures the temperature of the entire room is well regulated. It is best to have the room at a humidity of 40-50 percent and a temperature of around 70-75 degrees Fahrenheit. 

With these conditions, rest assured that your guitar is safe. Better still, it is best to leave the door closed most times. The only issue with the room modifier is that it is expensive in comparison with the soundhole and guitar case humidifier.


In conclusion, guitar humidifiers are very important for the full functioning and longevity of your guitar. It is important to check the temperature and humidity of the guitar regularly. 

Also, ensure that humidifiers are not left in direct contact with the instrument. For a guitar case humidifier, it should not touch the wood and for a soundhole humidifier, ensure it is suspended from the strings. 

Also, avoid exposure of instrument to extremes of temperature as this would definitely have an effect on the guitar. 

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