The role of negative oxygen ions mainly includes the following: 1, can activate the oxygen molecules in the air, making it easier to be absorbed by the human body. 2, the human body inhaled oxygen-carrying negative ions, the lungs can increase the absorption of oxygen by 20%, and 14% more carbon dioxide emissions. 3, can change the body’s responsiveness, active reticuloendothelial system function, increase the body’s immunity. 4, negative oxygen ions can make people’s spirits, improve efficiency, and has a significant analgesic effect on sleep quality. Improve work efficiency, for sleep quality has a certain improvement effect, and has a significant analgesic effect. 5, negative oxygen ions can effectively remove and neutralize methanol, toluene, carbon monoxide and other toxic gases, can protect human health. 6, negative oxygen ions can form a protective layer of negative ions, effectively reduce the TV, computer generated by high voltage static electricity damage to the eyes, can prevent myopia.