Boveda 2-Way Humidity Control Kit

Boveda is not the same as PG (or 50/50) solutions, beads or gels. Boveda utilizes saturated salt solutions to provide the only true 2-way humidity control on the market. Boveda has a reverse-osmosis membrane to emit only purified water vapor.  Only boveda can be used for hygrometer calibration. It will never over humidify, no matter how many you use.  Keep your instrument properly hydrated with the Boveda 2-Way Humidity Control Kit. It will keep a perfect balance between 45-55 relative humidity regardless of where you travel or the weather. If you live in an extremely dry area, or you run your heat during the cold, winter months, these Bovedas are invaluable. Also, if you live along a very moist coast, this will help keep your instrument from getting water logged. How to Use: The Boveda inserts go into a soft pouch, which you keep inside your case. The case becomes humidity controlled. Take your instrument out of the case for practice, keeping the case closed. Put the instrument back i