They just work. If you want to keep your herb from drying out, therefore affecting flavor, get these.
Works great in a Large CVault
Humidipaks were placed in the CVaults I ordered, which I guess was okay, but given the Boveda Humidipaks are active when exposed to air I was concerned that they were not in some sort of sealed packaging. Not sure how they preserve these, I could think airtight Vacuum packing would be needed.
No more bread tortillas fruit or wet paper towels to mousturize your stash. Helped my tired dry stash to be restored to its original glory.