Precision electronic purification engineering is also known as clean room or clean room, is now semiconductor, precision manufacturing, liquid crystal manufacturing, optical manufacturing, circuit board manufacturing and biochemistry, medicine, food manufacturing and other industries indispensable important facilities.In recent years, due to the innovation and development of technology, the demand for high precision and miniaturization of products is more urgent. For example, the research and manufacture of VLSI has become a very important project in the development of science and technology in the world, and our company's design concept and construction technology are in the leading position in the industry. Precision electronic purification works generally include 1. Purification of production area 2. Purification auxiliary room (including personnel purification room, material purification room and some living room, etc.) 3. Management area (including office, duty, management and rest, etc.) 4. Equipment area (including purification air conditioning system application, electrical room, high purity water and high purity gas room, cold and hot equipment room)   Precise electronic purification engineering purification principle Air flow → primary effect purification → air conditioning → medium effect purification → fan air supply → pipe → high efficiency cleaning tuyere → blow into the room → take away dust and bacteria Such as particles → return air shutter → primary purification Repeat the above process to achieve the purpose of purification   Precise electronic purification engineering purification parameters Ventilation times: 100000 level ≥15 times; Level 10000 ≥20 times; 30 1000 or greater. Pressure difference: the main workshop for adjacent rooms ≥5Pa Average wind speed: grade 10, grade 100 0.3-0.5m/s; Temperature > 16℃ in winter; < 26℃ in summer; Fluctuation plus or minus 2 ℃. Temperature 45-65%; The humidity of GMP powder workshop is appropriate at about 50%; The humidity of the electronic workshop is slightly higher to avoid generating static electricity. Noise ≤65dB (A); Fresh air supply is 10%-30% of the total air supply; Illumination 300 lx.