About the HygroSet
*Do not mix different Boveda RH levels within the same container, and do not use Boveda in the same container with other humidification products. They will fight against each other and reduce the efficiency of the Boveda.
One might expect that if you use a high RH Boveda in the same container as a lower RH Boveda that you'll achieve an environment somewhere in the middle. That is not the case, instead the moisture just transfers back and forth between the Bovedas.