The main ingredient is silica, silica gel, chemically stable, does not burn. Silica gel is an amorphous silica dust content of the workshop should be controlled not more than 10 mg / cubic meter, the need to enhance ventilation, wear a mask during the operation. Silicone has a strong adsorption capacity, can produce human skin drying effect, therefore, the operation should wear good clothes. If the silicone into the eyes, flush with lots of water and seek medical treatment as soon as possible. Blue Silicone because it contains small amounts of cobalt chloride, toxic, should avoid contact and inhalation of the mouth and food, such as the occurrence of poisoning should immediately seek medical treatment. Silica in the course of the medium due to the adsorption of water vapor or other organic substances, the adsorption capacity decreased after regeneration can be reused.