The principle of a product technology, malodorous exhaust ventilation equipment input to the use of the purification equipment, to go through the filter to remove macromolecules and particles, both on the primary exhaust gas treatment; followed by purification equipment using a special high-energy light waves and ozone decomposition of malodorous gases collaborative oxidation, high-energy light waves in the molecular bond cleavage malodorous gases bacteria, the bacteria damage the nucleic acid (DNA), and then by ozone oxidation reaction reaches completely kill bacteria and deodorizing purposes; Second, the use of high energy light decomposition of ozone in the air oxygen molecules to produce free oxygen, that reactive oxygen species, due to free oxygen carried by the electron-positron imbalance so the need to combine with oxygen molecules, and produce ozone. Ozone is known to have a strong oxidation of organic matter; Third, under the action of light, the photocatalyst will have a strong catalytic degradation function: can effectively degrade toxic gases in the air, can effectively kill a variety of bacteria, and can bacteria or fungal toxin released and harmless, but it also has deodorant, stain and other functions. To this end, this device can also be Jia Nami grade TiO2 purification module (parameter scale developed by the company, are confidential patent) means, once again on the exhaust gas purification catalytic oxidation; Fourth, for some of the more complex exhaust gas composition, stubborn handle objects We use the latest research and development, multi-band technology for processing - also known as microwave photocatalytic treatment technology. It is the use of specific microwave generator for generating light energy of a specific wavelength, the light source of the exhaust gas through the polar molecular chain cleavage expertise. First, the use of induced draft fan and pipe molecular contaminants introduced photocatalytic area, generally to experience strong oxidant OH electron bombardment --- --- energetic light oxidation catalytic decomposition of ozone oxidation --- --- --- Strong electron bombardment --- oxide --- ozone oxidation and oxidation processes are oxygen ions of oxidant-OH. From the structure of space in terms of pollutants through the filter area in turn, high-energy light photolysis zone photocatalyst area, oxidation zone. Multi-level structure is not only to ensure that the catalytic oxidation catalytic surface area, while playing a uniform diversion features, in a limited space to maximize space and ensure full access to a special light lamps, increase and enhance the activity of particles and pollutants accessibility and time. From a micro perspective, the use of 172 nanometer band cutting, chain scission, pyrolysis gas molecular chains, changing the exhaust structure of DNA; value of 253.7 nm wavelength for oxidation gas molecules, so that after the destruction of O3 molecules or neutrons to combine with the organic malodorous compound or an inorganic polymer molecular chain in the catalytic oxidation process, the transition to a low molecular compound to make it into CO2, H2O and the like. Deodorizing up more than 99%, purification, deodorization effect greatly exceeds the stench pollutant discharge standards (GB14554-93) issued by the State in 1993, "Air Pollutant Emission Standards" (GB16297-1996); "Design of Industrial Enterprises health standards "GBZ1-2002.