Negative ion powder is a kind of composite mineral which is synthesized or proportioned by human beings on the basis of the principle of producing negative ions in nature. Generally, it is electrical stone powder + lanthanide element or rare earth element. The proportioning ratio of rare earth element is much higher than that of electrical stone powder, and rare earth accounts for more than 60%.

　　Under the condition of high-speed economic development, Shifeng negative ion powder is used to add various new products. The products made of negative ion powder in our daily life include negative chain bracelet, necklace, anion soap, negative ion mask, negative ion shampoo and so on. Chemical materials include anion coating, anion purification paint and other new products. Can eliminate peculiar smell (formaldehyde, benzene, ketone, ammonia) irritating gas. Negative ion powder is also widely used in textile industry.

　　The action of negative ions

　　In the medical field, anion has been recognized as an effective means to kill bacteria and purify the air. The main mechanism is that the combination of negative ions and bacteria can change the structure of bacteria or transfer the energy, resulting in the death of bacteria, and finally sink to the ground. Medical research shows that the particles with negative electricity in the air increase the oxygen content in the blood, which is conducive to the transportation, absorption and utilization of blood oxygen. It has the functions of promoting metabolism, improving immune ability, enhancing muscle energy and regulating the balance of body function. According to research, negative ions can inhibit, alleviate and assist the treatment of 7 systems and nearly 30 kinds of diseases, especially the health care of human body.

　　Anion is known as "air vitamin" in the medical field. Its main functions are as follows:

　　1. Nervous system

　　2. Respiratory system

　　3. Metabolism

　　4. Circulation system

　　5. Treatment and health care

　　6. Immune system

　　7. Air purification