A large mold factory is located in Dongguan City and is a professional enterprise that produces mold blanks. It mainly produces large non-standard plastics, hardware mold frames, etc. It has close cooperation with many large enterprises (Gree, Skyworth, Huayisheng), so it attaches great importance to quality, and the premise of ensuring quality is to ensure the workshop environment. The environment is the first door that carries product quality, so the company attaches great importance to the workshop environment. We all know that mold production workshops have large mechanical equipment, such as CNC and stamping machinery, and during the production process, a large amount of hot air is emitted, causing the entire workshop to be very stuffy. With the arrival of hot summer, the workshop's odor and dust come with high temperature and stuffiness. In such an environment, not only can product quality be guaranteed, but workshop staff are also very uncomfortable, and work efficiency decreases. So improving the environment is urgent.

Just before the arrival of summer this year, the person in charge of the enterprise searched online and found the Guangdong business manager, Mr. Kou. After several rigorous workshop surveys and communication confirmations, combined with the actual situation of the workshop, a ventilation and cooling plan was designed and installed for the enterprise, which includes a negative pressure fan and industrial environmental protection air conditioning fan unit. Negative pressure fans use air convection to forcefully expel hot and humid gases from indoors to outdoors. Simultaneously operating environmentally friendly air conditioning to cool and filter outdoor air, continuously delivering it indoors, forming a continuous limited effect cycle.