What is a pass box and what role does it play in a clean room?

Clean rooms have become an indispensable facility in many industries that require strict control of environmental pollution. However, in daily operations, the transfer of items and the entry and exit of people will increase the risk of contamination in the clean room. At this time, the Pass Through Box plays a key role.

A pass box is a device installed on the wall of a clean room and used to pass items between clean and non-clean areas. It is usually made of stainless steel or other easy-to-clean materials and has good sealing properties to prevent airborne particles from entering or leaking. The design of the pass box allows items to be passed without directly opening the clean room door, thereby reducing the possibility of contaminants entering the clean room.
The environment in a clean room has extremely high requirements for the control of particles and microorganisms. Every time you open the door to a clean room, you bring the risk of outside air and contaminants entering. The use of pass boxes can significantly reduce this risk as it allows items to be passed without direct exposure to the cleanroom environment.
In a clean room, productivity is crucial. By using the pass box, staff do not need to frequently enter and exit the clean room, nor do they need to put on and take off clean clothing to pass items, thus saving time and improving work efficiency.

Pass boxes are usually equipped with ultraviolet germicidal lamps or high-efficiency filters (HEPA) to ensure the cleanliness of items during the transfer process. These measures help maintain cleanroom cleanliness levels in compliance with industry standards and regulatory requirements.
Pass boxes are not only widely used in industries that require a highly clean environment such as pharmaceuticals, electronic manufacturing, and biotechnology, but can also be used in laboratories, hospital operating rooms, and other places where environmental pollution needs to be controlled. Whether used to deliver medicines, tools, or other items, delivery boxes can effectively ensure the cleanliness and safety of items.
When choosing a delivery box, companies need to consider the following factors:
The transfer box material should be easy to clean and corrosion-resistant. Stainless steel materials are usually chosen to ensure durability and hygiene for long-term use.
Good sealing performance is the core requirement of the transfer box. It can prevent air exchange between clean areas and non-clean areas and maintain a stable environment in the clean room.
Depending on the needs, the transfer box can be equipped with ultraviolet germicidal lamps, HEPA filters or automatic door locking systems to increase cleanliness and safety during the transfer of items.
The transfer box is an indispensable and important piece of equipment in the clean room. It helps maintain the cleanliness of the clean room and the stability of the production environment by effectively controlling the risk of contamination during the transfer of items. For those companies that operate in high-standard clean environments, choosing the right pass box can not only improve work efficiency, but also ensure product quality and safety. So, have you considered installing a pass box in your clean room to better protect the production environment?