Biological purification engineering conditions: maintenance and inspection are indispensable, and the technical mezzanine and sealed doors of the workshop should be inspected regularly. Many pollutants are generated during the production process. The purification technology of the clean engineering can effectively control them, improve the cleanliness of the production environment, and ensure the safety of the products. According to the production technology and product quality requirements, the production workshop is divided into general production area, control area, and personnel changing area, men's and women's first and second dressing rooms, hand washing, hand disinfection, laundry room, air shower channel, clean pedestrian corridor, Logistics cargo shower aisle, injection room, rubber pad blowing dust, middle storage, assembly room, inner packaging room, outer packaging room and machine room, logistics, etc. The machine room is located in the original small room on the third floor, which needs to be soundproofed and shockproof; the cooling tower and cooling pump are placed on the third floor; the equipment operating load meets the floor bearing requirements.