Boveda Packs are an amazing invention. Each pack is rated for a certain humidity level, either 72%, 69% or 65%.

Simply place the correct number of Bóveda packets inside your humidor to maintain a precise relative humidity. Each Bóveda packet consists of a specially prepared saturated solution of pure water and natural salt. This saturated solution is contained within a water-vapor permeable reverse osmosis membrane. Within a closed desktop humidor Bóveda maintains a predetermined level of (RH) by releasing or absorbing purified water-vapor—as needed—through the membrane.

Boveda Packs are only to be used once, they are not refillable. They become very stiff when the contents are spent.

These amazing packs last around 2 months in an average humidor.