Boveda’s patented 2-way Humidity Control continually responds to ambient conditions by adding or removing Moisture to affect the closed environment and deliver the pre-determined RH (relative humidity) level printed on the pack.
4 gram, 8 gram and 67 gram available.
When it’s dry and crispy it’s time to replace
The more you use, the longer it lasts
The more you expose it to air, the harder it has to work