Retaining the suitable humidity vary with small effort and hard work can be a snap! This 2 oz. jar is filled with exclusive pre-charged h2o absorbing gel crystals. These jars can be employed Besides your humidor's current humidifiers or by on their own. To work with, basically twist off the cap & put the jar https://medium.com/@refinedtraditions/the-ultimate-buyers-guide-to-humidor-cabinets-09e99f97a801