Boveda Humidity Regulator 62%- Keeps humidity at 62%.Boveda 2 Way Humidity Regulators have been specially developed to create the optimal conditions for storing our favourite herbs. Thanks to a special membrane, the Boveda Humidity Regulator can both, absorb moisture and release it if the moisture is too low for aroma-conserving storage. Can be used for storage of up to 500g herbs, for larger quantities several bags can be used.Contents 67g for 500g herbs