Boveda's patented 62% humidity control packs regulate moisture content, providing 15% higher retention than flower stored without Boveda and adding or removing pure water vapor, as needed, to maintain a precise relative humidity (RH). Only Boveda responds to any atmospheric humidity conditions inside a container by maintaining the predetermined relative humidity (RH) level of 62%. They don't need any activation or maintenance. Just place them in an airtight container with your items and Boveda technology will do the rest. Your material will stay fresh, with stable moisture content, delivering a consistently exquisite experience every time.