Why HEPA box is important for clean room ventilation

HEPA box is a key piece of equipment in the terminal air filtration of air purification systems such as clean rooms, dust-free workshops, cleanrooms, and laboratories in industries such as medicine and health, chemical processing, electronic manufacturing, and confidential instruments. It is usually composed of a static pressure box, a diffuser, a high-efficiency filter, and a regulating valve to achieve an efficient air supply. As a manufacturer specializing in the production of HEPA boxes, Zhongjing Purification provides some technical issues that need to be considered when choosing HEPA boxes for the needs of different companies. Therefore, when choosing a suitable HEPA box, the following points are given to pay attention to:
The design of the HEPA box needs to fully consider the factors of airflow and diffusion. When designing, it is necessary to fully understand the functions, scope of application, and structural types of different types of HEPA boxes.
For the selection of air outlets, it is necessary to focus on materials and processes and evaluate their main technical performance. First of all, the selected material must have excellent thermal conductivity and corrosion resistance to prevent dust and bacteria from growing.
When choosing the location of the air outlet, it is very important to consider its layout and installation method and the connection method with the air duct. To avoid direct wind blowing on the human body and causing discomfort, it is usually necessary to avoid pointing the air outlet directly towards the human body, and it is best to choose a position close to the corner of the room.
When considering the air outlet, it is also necessary to consider the factors of adjustment and control. Generally speaking, the air outlet should have the function of adjusting the air supply volume and air supply direction. In this way, it can be adjusted according to actual needs to meet the requirements of different seasons and environments.
There are many types of high-efficiency air outlets, and their layout needs to comprehensively consider the requirements of indoor noise, air flow organization, building decoration, and installation and maintenance. When choosing a HEPA box, it is necessary to make a decision based on the structure of the room.
The side-mounted replacement air outlet of a civil building should be installed less than 0.8m from the ground, and the outlet wind speed should not exceed 0.2m/s; for industrial buildings, the outlet wind speed should not exceed 0.5m/s.
For places with large indoor heat dissipation or tall spaces, the downward air outlet with stable airflow is preferred.
The outlet wind speed of the HEPA box should be determined by considering multiple factors such as noise level, air supply type, air supply method, installation height, and indoor allowable wind speed.