Montmorillonite desiccant is made from raw bentonite, characterized by: being a purely natural product, extremely fast adsorption rate, greater adsorption capacity, 100% biodegradable, non-toxic, non-corrosive, environmentally friendly, and low-cost, serving as a substitute for silica gel desiccants. The product exhibits excellent adsorption performance at room temperature and general humidity, with features such as adsorption activity, static dehumidification, and odor removal. Other characteristics: montmorillonite is low-cost, has a fast adsorption rate, and low preparation cost. Compared to other types of desiccants currently on the market, it not only adsorbs quickly and has high adsorption capacity but is also particularly safe for human consumption, making it ideal for food packaging. Applicable scope: Widely used in products that cannot be preserved with oil sealing or vapor-phase storage, such as optical instruments, electronic products, medical and health care, food packaging, as well as military and civilian products for dry air storage.