As the paint sprayed from the gun cannot completely cover the work, so it produces a great amount of poisonous coating mist when spraying the works. To keep the air not polluted and protect the worker's health, we produce Table Water-curtain Spray Cabinet for small-scale spraying in labs. This spray cabinet applies the latest design plan, using The negative pressure principle, the dental plate and arc plate produce strong airflow when working, and makes the water becomes eddy to wash the indrawn coating mist, the gas will be exhausted by the fan, and the paint residue left in the water. In addition, the whole spry cabinet is made of stainless steel and equipped with a high-pressure centrifugal fan, and it possesses a small footprint, easy operation, safe, easy to clean and so many other characters, it is new and favourable environmental protection equipment. This spray the cabinet is capable to directly splash the residual coating mist into the water pool or water curtain.