Our self-developed WQX series micro waste gas absorption units utilize an opposite absorption process to treat industrial by-products like nitrogen oxides, achieving waste-to-wealth transformation and gas purification for compliant emissions. Since entering the market, they have been well-received. With the development of the chemical industry and increased environmental protection requirements, small chemical, food, and electronic enterprises also need to manage waste gases. These enterprises have small waste gas volumes and low concentrations, but conventional units require high investments (ranging from tens of thousands to millions), large land use, and on-site installation and tuning, which are quite inconvenient. Therefore, we have introduced our micro waste gas absorption complete sets. These units integrate multiple components, with an acid tank built-in cooler, compact in structure, and fully tuned before shipment. After receiving the goods, users can simply connect water and electricity (or perform a simple assembly) to use them. To date, they have served hundreds of chemical enterprises and have received an overwhelming number of positive reviews.