Buy Boveda at Doc's.
Boveda knows 2-way humidity control for packages and containers. We invented it.
It’s well known in science that certain salts mixed with water will naturally regulate humidity. We just patented the way that made it practical for packaging. All other packaging inserts either add moisture or remove moisture. Only Boveda does both, monitoring the RH (relative humidity) inside the container and regulating to the specific RH engineered into the Boveda.
The same precision technology we use in the music, electronics, medical device and food storage industries is available in a range of tobacco-related humidity levels to give you a number of zero-maintenance options to create your ideal aging environment. Based on your humidor quality and preferred humidity level – 65, 69, 72, 75 and 84% (exclusively for seasoning) RH levels are available.