D'Addario PW-HPK-12 Small Instrument Humidipak Kit

019954448141

$15.99

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D'Addario brings its patented Humidipak Maintain system, powered by Boveda's two-way humidity control technology, to orchestral string instruments. Rather than simply adding moisture like a traditional humidifier, Humidipak reads the environment inside your case and automatically adds or depletes moisture as needed to hold a steady 45-50% relative humidity.

That consistency is what keeps wood instruments stable and protects them against cracks, warping, and open seams through dry winter heat and humid summer air alike. There's no water to add, no refills, and no guesswork.

Using it is simple: place the Humidipak packet in the included pouch, set it inside your case, and keep the case closed. Replacement packets must always be used with the provided containment pouch. Each packet stays maintenance-free for three months, and it's ideal for violin, viola, ukulele, mandolin, and other small instruments.

  • Two-way humidity control — adds or removes moisture automatically
  • Holds a consistent 45-50% relative humidity inside the case
  • Maintenance-free for 3 months; no water, no refills
  • For violin, viola, ukulele, mandolin and other small instruments
  • Packet must always be used inside the provided containment pouch

Included in the package are:

D'Addario PW-HPK-12 Small Instrument Humidipak Kit

Humidipak packet

Containment pouch

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D'Addario PW-HPK-12 Small Instrument Humidipak Kit

D'Addario PW-HPK-12 Small Instrument Humidipak Kit

$15.99

$15.99

Protects Your Investment

Holding a steady 45-50% relative humidity inside your case helps guard the instrument against cracks, warping, and open seams caused by swings in the environment.

Zero Guesswork

The system automatically adds or depletes moisture as needed, so you don't have to read a hygrometer or judge when your instrument needs attention.

No Water, No Mess

There's nothing to fill, wet, or wring out — just drop the packet in its pouch and close the case.

Two-Way Humidity Control

Unlike one-way humidifiers, Humidipak both adds and removes moisture to keep conditions in range.

Powered By Boveda

D'Addario's patented Humidipak Maintain system uses Boveda's proven two-way humidity control technology.

45-50% Relative Humidity

Maintains the optimal humidity range for wood instruments inside a closed case.

Three-Month Service Life

Each packet is maintenance-free for roughly three months before it needs replacing.

Built For Small Instruments

Sized for violin, viola, ukulele, mandolin, and other small instruments.

Included Containment Pouch

The packet sits in the provided pouch, which must always be used with Humidipak replacement packets.

Frequently Asked Questions

Specs & Support

• Type: Two-way humidity control system (Humidipak Maintain)

• Technology: Powered by Boveda

• Humidity Level Maintained: 45-50% relative humidity

• Duration: Maintenance-free for 3 months

• Water or Refills Required: None

• Ideal For: Violin, Viola, Ukulele, Mandolin and other small instruments

• Usage Note: Always use packets with the provided containment pouch and keep in a sealed case

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