How exactly does a cleanroom regulate its air quality?


Industrial sectors such as aerospace and electronics have specific air quality requirements for manufacturing certain products. Employees work inside controlled environments known as clean rooms in such industries to avoid airborne particulate contamination of their processes. Cleanrooms provide different environmental conditions from normal working spaces. To maintain such environmental conditions, cleanroom systems are built with air systems that control and monitor the cleanroom.

Inside the cleanroom, pollutants such as dust and microbes are filtered using Air Handling Units (AHU). The basic function of a cleanroom AHU is to recirculate highly filtered air. The air is recirculated at a rate relating to the class of the cleanroom to provide the required air changes per hour required. Depending on the desired conditions within the cleanroom, an AHU can also regulate and control air temperature, humidity, and pressure within the cleanroom.

Air Handling Units (AHU) usually contain multiple filtering stages, with the final stage being HEPA (High-Frequency Particulate Air) filters. The HEPA filters are a highly efficient and vital to the cleanrooms air quality as they remove almost all airborne

Another concern for maintaining air quality inside cleanrooms is the number of cleanroom personnel. Workers are one of the major sources of contamination inside cleanrooms. About 80% of particle contamination is generated by cleanroom personnel. Practising good hygiene, wearing protective equipment, and limiting entry and exit frequency help maintain good air quality inside the cleanroom.

Cleanrooms are designed and built to support the specific demands of different industries and customers. If you are looking for a bespoke cleanroom, DRYSYS is an industry expert in designing cleanrooms for various industries like aerospace, automotive, and rail industries, among others.

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