In the process of exhaust gas treatment, the exhaust gas enters the tower body under pressure from the fan. Inside the tower, it undergoes purification and filtration through multiple stages of water and packing materials, reducing the concentration of the exhaust gas to meet environmental protection standards, before being discharged through the outlet. When the mixed gas passes through the bottom of the washing tower, there is liquid from the product components between the tower plates, causing some of the gaseous product components to liquefy while others evaporate. Impurities that cannot be liquefied or solidified will be trapped by the liquid product components when passing through the tower plates with liquid present, resulting in a washing effect. The washing tower is designed and manufactured based on this principle. The washing tower utilizes the contact between gas and liquid to transfer pollutants from the gas into the liquid, and then separates the clean gas from the contaminated liquid to achieve the goal of clean air. The exhaust gas is treated through a packed acid mist washing tower using a countercurrent gas-liquid absorption method, where the liquid is sprayed downwards in a mist (or small droplets) from the top of the tower. The exhaust gas flows upward through the tower (countercurrent flow) to achieve gas-liquid contact. This treatment can cool the exhaust gas, condition the gas, and remove particles, after which it is discharged into the atmosphere following demisting treatment.