The difference between a clean room and a regular factory building

The main difference between a clean room and a regular factory building lies in the degree of purification and cost. The clean room is made of industrial aluminum or stainless steel square pipes as the frame, equipped with a fan filter unit (FFU) for air supply, and hung with anti-static curtains. The internal purification level can reach 100-100000. However, ordinary factories do not have such purification systems and are no different from the external environment. The cost of a clean room is relatively high because it includes special exhaust systems, filtration systems, and intelligent systems.