How long do you soak the sponge in the planet wave gap guitar humidifier? The sponge doesn't seem to soften.

It takes about 30 mins. But put something over it to make sure it is completly submerged in water.

How much water do you add?

I squish it around under the faucet until it's completely saturated, then shake off the excess drops so it won't drip I side the guitar.

any reason not to use for a classical guitar

These are the only humidifiers I would use on my classical guitars They are good! Just make sure you wet the sponge with purified water (you can buy at every grocery store) and not sink water as the minerals will cause the sponge to mildew

Can you hang the guitar on the wall with this in it?

You could, but it wouldn't be very effective. I keep mine in a closed hard case and am able to maintain the humidity level around 50 in dry west Texas. It's dryer in winter. I have come to the conclusion that the only way I can hang, or leave my vintage acoustic guitars out on stands or hanging is in a humidity/ temperature controlled room. Until then it's in the case with one of these soundhole humidifiers.

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D'Addario Acoustic Guitar Humidifier Pro

Product ID: 64611354

Details

Brand
D'Addario
Capacity
20 litres
Colour
Original
Operation mode
Manual
Special feature
Adjustable

🎸Protects guitar neck & body

💧12x water absorption sponge

⚙️Adjustable humidity control

MOP$206

Duties & taxes included

In stock

Sold byAmazon MacauDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Keep your guitar flawless, sound flawless — never miss a beat!

TRUSTED BY PROS - From D'Addario, the world’s leading innovator in musical accessories
NO MESS NO GUESSWORK - Manual operation with no drips or spills for hassle-free protection
EFFORTLESS MAINTENANCE - Hydrophilic sponge holds 12x its weight, reducing refill frequency
ULTIMATE MOISTURE DEFENSE - Prevents cracks, warping & shrinkage even in driest environments
PRECISION HUMIDITY CONTROL - Adjustable settings ensure your guitar stays perfectly balanced

The D'Addario Acoustic Guitar Humidifier Pro uses a specialized hydrophilic sponge that absorbs 12 times its weight in water to provide slow, even moisture release. Designed to prevent damage like cracks and warped necks, it features adjustable humidity control for precise protection. Compact and manual, it’s a must-have for maintaining your acoustic guitar’s tone and longevity, trusted by musicians worldwide.

Specifications

ASIN	B013WW8AUE
Best Sellers Rank	17,514 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 234 in Guitar Cleaning & Care 982 in Accessories for Drums & Percussions
Brand Name	D'Addario
Capacity	20 litres
Colour	Original Version
Control Method	Touch
Country of Origin	USA
Customer Reviews	4.5 4.5 out of 5 stars (778)
Filter Type	Wick
Global Trade Identification Number	00019954169633
Included Components	[Humidifier]
Item Dimensions D x W x H	25D x 25W x 25H millimetres
Item Highlight	D'Addario guitar humidifiers help maintain proper moisture, protect acoustic instruments and support stable tone.
Item Shape	Round
Item Type Name	D'Addario Acoustic Guitar Humidifier Pro
Item Weight	0.06 Kilograms
Manufacturer	D'Addario
Material	Hydrophilic Sponge
Model Name	Guitar Humidifier Pro
Model Number	GHP
Number of Packs	1
Operation Mode	Manual
Other Special Features of the Product	Adjustable Humidity Control
Part Number	GHP
Power Source	Corded Electric
Product Warranty	Not applicable.
Room Type	Bedroom
Runtime	1 minute
UPC	019954169633
Unit Count	10.0 count

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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MOP$206

Duties & taxes included

In stock

Sold byAmazon MacauDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Macau.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews