Boveda is the worldwide leader in humidification. Boveda pouches are different than distilled water or PG solutions, as they use a patented reverse-osmosis membrane to regulate humifity to within +/- 1%. Humidity level too high? The pouch will absorb it. Humidity too low? Boveda will expel pure water vapor to keep your cigars PERFECTLY humidified!
Each Boveda pouch will last 2-4 months in a well-seasoned humidor.
Boveda pouches will never over humidify your humidor, they will hold perfect humidity in the right conditions!
Use one 60g Boveda pouch per 25 cigars your humidor can hold.