In the field of clean room, industrial clean room and biological clean room are two different concepts, and they differ in terms of application scenarios, control objectives, control methods, building material requirements, access control of personnel and items, detection methods, and hazards to the production industry. There are significant differences.
First of all, in terms of research objects, industrial clean room mainly focus on the control of dust and particulate matter, while biological clean room focus on the growth and reproduction control of living particles such as microorganisms and bacteria, because these microorganisms may cause secondary pollution, such as metabolites and feces.
Secondly, in terms of control objectives, industrial clean room focus on controlling the concentration of harmful particulate particles, while biological clean room focus on controlling the generation, reproduction and spread of microorganisms, and also need to control their metabolites.
In terms of control methods and purification measures, industrial clean room mainly use filtration methods, including primary, medium and high three-level filtration and chemical filters, while biological clean room destroy the conditions for microorganisms, control their growth and reproduction, and cut off transmission routes. And controlled by means such as filtration and sterilization.
Regarding the requirements for clean room building materials, industrial clean room require that all materials (such as walls, roofs, floors, etc.) do not produce dust, do not accumulate dust, and are friction-resistant; while biological clean room require the use of waterproof and corrosion-resistant materials. And the material cannot provide conditions for the growth of microorganisms.
In terms of the entry and exit of people and objects, industrial clean room require personnel to change shoes, clothes and accept showers when entering. Articles must be cleaned and wiped before entering, and people and objects must flow separately to maintain the separation of clean and dirty; while biological clean room require personnel shoes and clothes are replaced, showered, and sterilized when entering. When items enter, they are wiped, cleaned, and sterilized. The air sent in must be filtered and sterilized, and tasks and clean and dirty separation also need to be performed.
In terms of detection, industrial clean room can use particle counters to detect the instantaneous concentration of dust particles and display and print them. In biological clean room, the detection of microorganisms cannot be completed instantly, and the number of colonies can only be read after 48 hours of incubation.
Finally, in terms of harm to the production industry, in an industrial clean room, as long as a particle of dust exists in a key part, it is enough to cause serious harm to the product; in a biological clean room, harmful microorganisms must reach a certain concentration before they cause harm.
In summary, industrial clean room and biological clean room have different requirements in terms of research objects, control objectives, control methods, building material requirements, access control of personnel and items, detection methods, and hazards to the production industry.
Post time: Nov-24-2023