Why shouldn’t I use Boveda with other humidification devices?

Boveda was designed as a stand-alone 2-way moisture control.​ When you introduce a wet sponge, crystal, gel or beads, Boveda is absorbing the very high humidity given off by these 1-way humidification devices, giving you mixed results. Just use at least one Boveda per 25 cigar capacity for perfect and predictably precise results.