Mineral desiccant—Mineral desiccant is composed of several kinds of natural minerals, and the appearance is off-white small balls. It is non-toxic and harmless, and is a degradable environmentally friendly desiccant.

　　silica gel desiccant-the main component is silica, which is purified and processed from natural minerals into granules or beads. As a desiccant, its microporous structure has a good affinity for water molecules. The most suitable hygroscopic environment for silica gel is room temperature (20~32) and high humidity (60~90%). It can reduce the relative humidity of the environment to about 40%. Silica gel is a kind of highly active adsorption material. It is usually prepared by the reaction of sodium silicate and sulfuric acid and through physical processes such as aging and acid foaming. Silica gel is an amorphous substance with stable chemical properties. Reacts with any substance, silica gel has high adsorption performance, good thermal stability, high mechanical strength, non-toxic, odorless, and pollution-free. It is widely used in packaging and sealing of shoes, hats, handbags, food, medicine, toys, wooden products, instruments, meters, electronics, computers, furniture, etc., static adsorption in closed spaces, removal of moisture, control of relative humidity, and moisture-proof The effect of mildew.