D'Addario Planet Waves Auto Two Way Humidity Control System

The D’Addario Humidipak uses Boveda’s patented two-way humidity-control technology to keep your acoustic guitar perfectly maintained with zero guesswork and no refilling. Unlike traditional sponge or gel humidifiers, Humidipak actively adds or removes moisture to maintain a stable 45–50% relative humidity—the ideal range for protecting wood instruments from cracks, warping, or swelling.

Each pack lasts 2–6 months inside a sealed environment such as a hard case. When the packets become firm, simply replace them with the Humidipak Refills (PW-HPRP-03). Used and recommended by leading manufacturers including Taylor Guitars, this is the safest, cleanest, and most precise humidity solution available.

Note: Humidipak is for maintaining and restoring ideal humidity—not for dehumidifying high-humidity environments.

Key Features

• Patented two-way humidity control maintains 45–50% RH

• Protects against cracks, fret sprout, warping, and top sink

• No water, no drips, no mess — completely maintenance-free

• Automatically compensates for seasonal and geographic changes

• Includes 3 Humidipak packets + soft mesh pouch

• Packets last 2–6 months depending on conditions

• Designed for use in a closed hard-shell case

• Made by Boveda exclusively for D’Addario