HUMI-SMART provides a perfectly stable relative humidity (RH) for the storage of a variety of products. Our packs are designed for cigars, tobacco, herbal medicine, cannabis, food storage, spices & nuts, wood instruments, electronics, document and photo storage and much more. Say goodbye to too wet and too dry.HUMI-SMART's 2-way humidity control technology responds to the environment you place it in—either releasing or absorbing moisture as needed to ensure the optimal environment for everything from your favorite pantry items to rare cigars. Safe, salt-free, and 100% non-toxic.All of our products are FDA-approved, spill- and tear-resistant, biodegradable and non-toxic. Plus, they're 100% salt-free—so they won't alter the taste of your pantry items, cannabis or rare cigars—and are made with food-grade approved ink. Stop playing the guessing game.Every HUMI-SMART 2-way humidity pack includes a Replacement Indicator Card. Simply replace the current HUMI-SMART pack when the PINK dot on the Humidity Indicator Card turns BLUE. Humidity control that adapts to your needs.Whether you live on a humid coast or in a landlocked desert, HUMI-SMART 2-way humidity packs respond and adapt to the environment they're placed in, creating optimal moisture levels with minimal work.