25KG Bulk Pack Desiccant Regeneration/ Recycle Packing Use Moisture Adsorption Silica Gel Blue, white 1. Mainly used for moisture absorption and rust proofing when instruments and equipment are placed in obturation conditions, at the same time, according to their own color turning red from blue after the moisture absorption it can indicates ambient humidity directly. 2. It being used with ordinary silica gel desiccant, we can get the desiccant moisture level and judge the relative ambient humidity. 3. Desiccant silica gel used for packaging, it is widely used in precise instruments, leather, shoes, clothing, food, medicine and household appliances, etc.