Currently, there are five main typical desiccant products in the desiccant industry:

1) Silica gel desiccant - its main component is silicon dioxide, processed from natural minerals into granular or spherical beads after purification. As a desiccant, its microporous structure (average 2A) has a good affinity for water molecules. Silica gel is most suitable for moisture absorption in environments with room temperature (20~32"), high humidity (60~90%), and it can reduce the relative humidity of the environment to around 40%."

2) Clay desiccant (montmorillonite) - appears as small gray spheres, most suitable for moisture absorption in environments below 50"). When the temperature is above 50"), the "water release" degree of clay becomes greater than the "water absorption" degree. However, the advantage of clay lies in its low price."

3) Molecular sieve desiccant - it is a synthetically produced desiccant product with strong adsorption capacity for water molecules. The pore size of molecular sieves can be controlled through different processing techniques; in addition to adsorbing water vapor, they can also adsorb other gases. They can still effectively hold water molecules even at high temperatures above 230"). Advantages: strong adaptability. Disadvantages: low moisture absorption rate, poor environmental friendliness (non-degradable)."

4) Mineral Desiccant—Hengyuan Mineral Desiccant It is composed of several natural minerals and appears as small off-white spheres. It is non-toxic, harmless, and a degradable, environmentally friendly desiccant. Its moisture absorption rate is over 50%, which is twice that of ordinary silica gel.

5) Fiber Desiccant —Hengyuan fiber desiccant is exquisitely made from pure natural plant fibers through a special process. Among them, the laminated fiber desiccant sheets are particularly convenient, practical, and space-saving. Their moisture absorption capacity reaches 100% of their own weight, which is incomparable to ordinary desiccants. In addition, this product is safe and hygienic, reasonably priced, making it an ideal choice for many biological, health food, and pharmaceutical products.