Acoustic instruments are finely-tuned machines susceptible to the throes of weather and arid conditions, and humidifiers ensure they stay as pure-sounding as the day you bought them. Ranging in design from something as simple as a small pod to retain an ideal case atmosphere to BlueTooth-enabled units capable of being monitored from your phone, these essential but sometimes overlooked accessories save you from hundreds of dollars in future repairs. Find the best guitar humidifers right here on Reverb.