2020 is destined to be an extraordinary year, a new type of coronary virus plague that swept the world broke out at the beginning of the New Year; so far, the cumulative number of diagnostic diagnosis has exceeded 30 million, and the number of deaths exceeds 800,000, but none of them none of them. There are more than 50,000 symptoms. The new research data proves that the new coronary virus can be transmitted in the air for several hours through the tiny particles floating in the air, while the spread is tens of meters. At present, our defense measures are only the most primitive protective clothing, alcohol, mask and other means. Instead of passive defense, we might as well take the initiative to attack and kill the new crown virus in the air. With the technology of independent research and development, we successfully developed the ""hunter"" air purifier on the night of 55 days after the night. The actual measurement of Wuhan Jinyantan Hospital was measured to kill 99%of the new crown virus in the air (data comes from the key experiment of gas solution chemistry and physics of the Chinese Academy of Sciences room).