Boveda 2-Way Humidity Control Large Instrument 70g Starter Pack

• Requires zero maintenance—no more filling messy hoses and snakes and wetting sponges
• Maintains an ideal relative humidity range for instruments 45–55% RH, the industry standard for wooden instruments.
• Prevents wide fluctuations in humidity that cause the wood to expand or shrink, and degrade its performance abilities
• Replace Boveda 2-way humidity packs every three (3) months
• 70 gram packs designed for small instruments

HOW BOVEDA WORKS FOR MUSICAL INSTRUMENTS: Boveda 49% RH protects wood instruments & their accessories by stabilizing the humidity within the ideal range—45–55% RH. If the air inside a case is too moist, Boveda absorbs that moisture. If it's too dry, Boveda releases small amounts of water vapor into the case. Wide humidity fluctuations will cause the wood to expand or shrink, which puts stress on the instrument & degrades its performance abilities.