Using high-energy high-ozone UV ultraviolet light beam to decompose oxygen molecules in the air to generate free oxygen, that is, active oxygen. Because the positive and negative electrons carried by the free oxygen are unbalanced, it needs to be combined with oxygen molecules to generate ozone. UV+O2→O-+O* (active oxygen) O+O2→O3 (ozone), it is well known that ozone has a strong oxidation effect on organic matter, and has an immediate effect on the removal of industrial waste gas and other irritating odors.