Clean room, also known as Dust-free workshop or Dust-free plant. In the FED-STD-2, a cleanroom is defined as a room with air filtration, distribution, optimization, construction materials and equipment.
With specific operating procedures, cleanroom is used to control the concentration of airborne particulates to achieve proper cleanliness level.
Clean room means to minimize particles, harmful air, bacteria and other pollutants in the air within a certain space, and control air pollution.