D'AddarioGuitar Humidifier Packs - Two-Way Humidification System Conditioning Packets - For Maintaining Proper Guitar Humidification Level - 3 Maintain Replacement Packets

Keeps the humidity in its hard case at the right level during a Summer camping holiday in the South of France where it was hot and humid.

My 1964 Levin Jumbo has been sounding a bit dull for quite some time, despite several experiments with different strings. After using the Humidifier Maintain pack for just a few days, I've noticed a marked improvement in resonance and sharpness of sound. I'm thrilled!

So I bought these to put in my guitar cases, however you don't get the pouches that you have slip them into and I can't find them being sold separately. You only seem to be able to get them if you buy humidipak maintain kit that's over £30. This is really frustrating as now I can't use these atm.

I don't know whether Humidpak is really necessary when the guitar is located in Devon's pleasant climate, but I've got a great guitar, and I'm taking no chances!

Great product, stops you worrying about low or high humidity. Its a no brainer

Use these in my Taylor with a Taylor Sense unit. D'Addario's humidification packs do the hard work and are very effective at keeping your guitar at the required humidity levels. They are easy to use and good value for the price you pay. Recommended.

I have a Colling D2HA acoustic guitar and Collings recommend keeping the guitar in the case when not playing, as it's a sealed environment. They say the ideal temperature should be 21 degrees centigrade and 49% humidity. This product is recommended by Bob Taylor of Taylor Guitars and I have been using it for the past 8 months and in the British climate, it has lasted longer than I expected. With a high end guitar in particular, I think taking care of one's instrument is a wise thing to do - after all they are only made of wood and glue .....

Pros:- A leave and forget humidification system- Fits almost all guitars and guitar casesCons:- These work better in a dry environment (to soak up excessive moisture) than an already high humidity environment.- I have purchased these Humidipaks for over a decade. I noticed the design of the packs had slightly changed and the pouches you put them inside had changed considerably. Doing some research online showed that there is a potential for these packs to leak, so they changed the design of the pouches to be waterproof. I still have the non-waterproof pouches and planet waves customer service told me to dispose of them due to the lack of protection they offer. If a company is asking me to dispose of their product due to it not being fit for purpose, I'd expect a replacement free of charge.- The packs are said to not be reusable, but a quick search online shows that they can be.I hope you find this review helpful