About decontamination: clean room, also known as clean rooms, clean room (Clean Room), clean room, refers to air pollutants within a certain range of space particles, hazardous air, such as the exclusion of bacteria, and the interior of the temperature, cleanliness, room pressure, air velocity and air distribution, noise, vibration and lighting, static control within a range of needs, especially given the design of the room while. That is regardless of how changes in the outside air conditions, and its interior could all have to maintain the cleanliness requirements originally set properties such as temperature, humidity and pressure performance of. No layer purification level workshop on division: None layer purification plant ten, one hundred non-layer purification plant, one thousand non-layer purification plant, 10,000 non-purification plant floor, one hundred thousand free layer purification plant, three hundred thousand free layer purification plant, one million free layer purification plant. Applications: microelectronics, magneto-optical technology, bio-engineering, electronic equipment, semiconductor, automotive painting, medicine, precision instruments, aerospace, food industry, cosmetics industry, scientific research and teaching in high-tech industries.