Packs 4g

Boveda's patented 2-way humidity control continually responds to ambient conditions by adding or removing moisture to affect the enclosed environment and deliver the pre-determined relative humidity (RH) level printed on the pack. It’s impossible for Boveda to over-humidify beyond the RH on the pack. That’s why our usage instructions talk about minimums, not maximums. There’s no such thing as using “too much”. More than the minimum will just last longer.