2-way Humidity Control - Boveda Starter Kit, Large

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Available delivery methods: Collect from the shop in Tampere, Finland, Only to Finland (parcel to a locker or Posti outlet), Finland (Posti home delivery), Finland (FRAGILE parcel to Posti outlet), To Baltic countries (Post parcel), Sweden and Denmark (PickUp Parcel), Europe, zone 2 (Priority parcel), Europe, zone 1 (Parcel Connect), Other countries (Priority parcel)

Effertless protection for guitars and bass guitars

Without proper humidity control, wood instruments will not perform at their maximum ability and even worse can be damaged. To maintain their shape, wooden instruments need to be stored at a stable 45-55% RH (relative humidity). Wide fluctuations in humidity will cause the wood to expand or shrink, which puts stress on the instrument and degrades its performance abilities.

Stop risking your instrument by adding water. Only Boveda’s patented 2-way humidity control adds or removes moisture as conditions require to maintain the ideal humidity level in your instrument case. Boveda helps prevent warping or cracking, and eliminates downtime for service. Because Boveda requires zero maintenance, your instrument will always be protected.

Using Boveda in an instrument case:

  • Requires zero maintenance—no more filling messy hoses and snakes and wetting sponges
  • Maintains an ideal relative humidity range for instruments—45-55% RH
  • Prevents wide fluctuations in humidity that cause the wood to expand or shrink, and degrade its performance abilities

This all-in-you-need kit includes:

1) Two (2) Fabric Holder:

  • The patented interior material allows water vapor to pass through to the instrument.
  • Gives added protection while extending the life of the Boveda.
  • The exterior is soft fabric, so it doesn’t scratch your instrument.

2) Four (4) 49% RH Standard Packs:

  • Keeps a wood instrument in the safe zone to prevent cracking, warping and other costly repairs.

See video instructions in YouTube


  1. Remove the plastic wrapper from one of the packs. (Do not open the Boveda itself.)
  2. Insert one unwrapped Boveda into the pouch of its protective fabric holder.
  3. Place in the case anywhere that allows for airflow and prevents puncture when you close the case:
    - Under the neck or headstock
    - On the strings
    - Open area in the case
  4. Close the case's lid. Always keep your case closed when using Boveda. 


Achieves and maintains a constant relative humidity (RH) range between 45% and 55%.

Food-grade salt, purified water and a food-grade thickening agent sealed inside a leakproof membrane.

Boveda is expired if:

The entire pack feels rock solid all the way through

Always insert Boveda into a pouch of a Boveda fabric holder before placing in an instrument case. The fabric holder allows Boveda to last longer and work better and acts as a liquid barrier if a packet is accidentally punctured. 

Do not mix different Boveda RH levels within the same instrument case. And do not use Boveda in the same case with other humidification products because they will fight against each other and reduce the efficiency of Boveda.


Each Boveda is individually overwrapped. 

Boveda will last 2-6 months depending on the time of year, your climate and your case.
Unopened package: Up to two (2) years

Do the touch test. Replace the initial pack with your replacement pack BEFORE Boveda is totally rigid to avoid a lapse in humidity protection for your instrument.

Boveda is still working if you feel: 

Hardening at its corners Soft spots among some hard areas



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