A desiccant is a hygroscopic substance that absorbs moisture or humidity, promoting or sustaining dryness in its vicinity. They play a vital role in preventing the growth of mold, mildew, and other moisture-related damage.

Desiccants are commonly used in packaging to preserve the quality and lifespan of products such as electronics, pharmaceuticals, and food. By keeping the moisture level low, desiccants help maintain the effectiveness and freshness of these items. In industrial applications, desiccants are used in drying processes, such as gas purification, air conditioning, and moisture control in electrical equipment. They are also useful in preserving important documents, artwork, and other sensitive materials.

The importance of desiccants lies in their ability to protect against moisture damage and extend the shelf life of various products, ensuring their quality and usability over time.