A cleanroom is a room where the concentration of suspended particles in the air is controlled. Its construction and use should reduce indoor entry, generation and retention of particles, and other related indoor parameters such as temperature, humidity, and pressure should be controlled as required. The cleanroom is distinguished by the number of particles of a certain particle size per unit volume of air. Class100 cleanroom means that the number of dusts above 5ug in 1m3 of air does not exceed 100, and the average number of colonies does not exceed 5. In recent years, it has been widely used in pharmaceutical engineering, surgery, electronics and other fields.
So, how to maintain and manage the class 100 cleanroom?
1. Management of environmental monitoring
The "sterile" environment of class100 cleanroom is mainly maintained by "filtering", "diversion" of the air and maintaining a "positive pressure" state in the room. Control management of the environment is very important.
(1) Control the temperature and humidity of the air in the cleanroom: the temperature is controlled at 22°C-25°C, and the humidity is controlled at 50%-60%, which can not only satisfy the comfort of the human body but also is not conducive to the survival of indoor microorganisms.
(2) Strengthen sanitation and cleaning management: Thorough cleaning should be performed once a week, and sweeping should be performed once a month. The cleaning tools used should not be made of fabric materials that have lost fibers. Detect the number of air dust particles, noise, temperature and humidity once.
(3) Regular microbiological testing, once a week. Determine maintenance procedures based on test results.
2. Operation management
(1) The items in the clean room are reasonably placed, easy to operate, and the materials of the items should be reduced as much as possible to control the number of items in and out.
(2) Set up a strict work process, clearly distinguish the clean and dirty areas, and formulate a strict work process.
(3) The clean laminar air-conditioning system should run continuously for 24 hours for the first time, and the air bacteria should be cultured twice before it can be used. The laminar air-conditioning system is turned on 30 minutes before each entry, so that the air-conditioning system runs continuously, and the polluted dust particles are exhausted as much as possible to ensure air quality. The primary and medium-efficiency filters are replaced every 6 months, and the high-efficiency filters are replaced every 1-2 years. The return air outlet is cleaned once a week to ensure the dust filtering effect.
3. Personnel management
(1) Strictly control the entry and exit of people, and minimize the number of people entering and leaving.
(2) When entering the cleanroom, people should change sterile clothing, wear shoes and hats, and wash your hands strictly.
(3) Strengthen personnel training, actively carry out theoretical study, and clarify the working principle and environmental requirements of laminar flow class 100 clean room.