60 gram Boveda provide hassle-free maintenance of full-size humidors and Humidor Bags. Every Boveda RH is accurate to +/- 1% in an air tight environment, which humidors are not. It's common that the actual RH of your humidor will stabilize up to 5 points lower than the Boveda RH you're using, due to humidor quality and ambient dryness.
That's why we make Boveda in five different RH levels for tobacco application: 65, 69, 72, 75 and 84 percent - so you can use the RH that achieves the humidity you and your cigars prefer.
Unlike distilled water and PG solutions with sponges/gel/crystals/beads that will impart unwanted flavors on your cigars, Boveda's reverse-osmosis membrane only releases pure water vapor and Boveda will never damage anything through direct contact.
Once you smoke a cigar stored with Boveda, you'll finally enjoy it exactly as the master blender intended.
Note: Do not mix Boveda RH levels within the same humidor, and do not use Boveda in the same humidor with other humidification products. They will fight against each other and reduce the efficiency of the Boveda.