A pass box, also known as a transfer box or hatch, is a chamber used to transfer materials between two areas with different cleanliness levels while minimizing the risk of contamination. Pass boxes typically have two doors, one on each side, which are interlocked to prevent both doors from being open at the same time. This design helps maintain the integrity of the clean and controlled environments by restricting air exchange and minimizing the transfer of particles or microorganisms between the two spaces. Pass boxes are commonly used in industries such as pharmaceuticals, healthcare, laboratories, and food processing to facilitate the safe transfer of materials without compromising cleanliness or sterility.

A pass box typically consists of a chamber with two doors, one on each side, and a mechanism that controls the interlocking of the doors to prevent both doors from being open simultaneously. Here is a detailed description of how a pass box works:

1. Contamination Control: The primary purpose of a pass box is to facilitate the transfer of materials between two areas with different cleanliness levels (e.g., cleanroom to non-cleanroom) while minimizing the risk of contamination. The pass box helps maintain the integrity of sterile or controlled environments by reducing the transfer of particles, microorganisms, or contaminants.

2. Interlocking Doors: Pass boxes are designed with two doors - one on the clean side and one on the external side. These doors are interlocked in such a way that only one door can be open at a time. This interlocking mechanism ensures that both doors cannot be open simultaneously, preventing direct airflow between the two areas and minimizing the risk of cross-contamination.

3. Operation: To use a pass box, an operator places the materials to be transferred into the pass box chamber from one side (e.g., cleanroom side) and closes the door. The interlocking system prevents the door on that side from being opened until the door on the opposite side is closed. Once the door on the external side is closed, the operator can open the door on the cleanroom side to retrieve the materials.

4. Airflow Control: Pass boxes may include features such as high-efficiency particulate air (HEPA) filters or ultraviolet (UV) lights to further enhance cleanliness and disinfection. HEPA filters help remove particles and airborne contaminants, while UV lights can sterilize the surfaces inside the pass box.

5. Sterile Transfer: Pass boxes are used for transferring items such as equipment, tools, samples, or materials that need to maintain their sterile or controlled environment. By using a pass box, organizations can ensure that these items are transferred safely and securely without compromising the cleanliness or integrity of the different areas.

Overall, pass boxes play a crucial role in contamination control and maintaining cleanliness in controlled environments by enabling safe and controlled material transfer between different areas. Their design and operation help reduce the risk of contamination and ensure the integrity of sterile or controlled environments in various industries.

Specifically, the working principle of a clean bench can be broken down into the following steps:

1. **Air intake**: The clean bench is equipped with one or more fans that create negative pressure to draw surrounding air into the bench. This process pulls the air from the operating area into the bench interior.
2. **Air filtration**: The drawn air first passes through a pre-filter to remove larger particles and dust. It then goes through a high-efficiency filter, which is the core component of the clean bench. Typically made of ultra-fine glass fibers, the high-efficiency filter captures and filters out almost all particles in the air, including dust, bacteria, viruses, and other microorganisms, ensuring that the filtered air reaches a very high level of cleanliness.
3. **Air flow control**: The filtered clean air is released through the bench's air outlet in a vertical or horizontal airflow pattern. This specific airflow organization ensures uniform and stable air circulation in the working area, preventing the spread of contaminants and cross-contamination. By adjusting the fan speed and outlet size, the airflow velocity and volume within the bench can be controlled to meet different experimental requirements.
4. **UV disinfection (optional feature)**: Some advanced models of clean benches are equipped with UV disinfection functionality. During operation, UV lamps periodically or continuously irradiate the working area to kill any existing bacteria, viruses, and other microorganisms, further enhancing the cleanliness of the working area.

Through these steps, a clean bench provides researchers with a clean, dust-free, and sterile working environment, which is crucial for ensuring the accuracy and reliability of experimental results, as well as the health and safety of researchers. Additionally, clean benches offer advantages such as ease of operation, good stability, and long service life, making them indispensable equipment in fields such as scientific research, healthcare, pharmaceuticals, biotechnology, and more.

Yes, you have the option to customize a pass box to meet your specific requirements instead of opting for a standard model. Customization allows you to tailor the pass box to your exact needs, whether it be in terms of size, materials, colors, finishes, or additional features. When considering customization, it's advisable to engage with the manufacturer or supplier to discuss your preferences and determine the feasibility of your customization requests.

Detailing your customization needs with us , We can provide you with insights into the customization process. DSX Company may offer advantages in customizing pass boxes, such as:

1. Expertise: DSX Company likely has extensive experience in designing and manufacturing pass boxes, allowing them to provide valuable insights and guidance throughout the customization process.

2. Customization Options: DSX Company may offer a wide range of customization options, including different sizes, materials, colors, finishes, and features, enabling you to create a pass box that aligns perfectly with your requirements.

3. Quality Assurance: DSX Company is likely committed to maintaining high quality standards in their products, ensuring that your custom pass box meets stringent quality control measures.

4. Customer Support: DSX Company may provide excellent customer support, guiding you through the customization process, addressing any queries or concerns, and ensuring your satisfaction with the final product.

5. Timely Delivery: DSX Company may have efficient production processes in place, allowing for timely delivery of your custom pass box without compromising on quality.

By leveraging DSX Company's expertise and advantages in customizing pass boxes, you can create a tailored solution that best suits your needs while benefiting from their quality products and support services.

We have complete control over the entire production process, from sourcing raw materials to manufacturing and final product delivery. This allows us to better control costs and ensure product quality.

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9.Advanced Technological Equipment: We have introduced advanced production and testing equipment from both domestic and international sources, including automated production lines and precision testing instruments. In addition, we have established a wind tunnel laboratory to further enhance our capabilities. With these advanced and specialized equipment, coupled with our professional team, we are able to maintain a high level of quality in both the development of new products and the production process.

10. High-Quality Material Sources: We have established long-term partnerships with reliable suppliers to ensure the quality and stability of our raw materials. We only use high-quality materials to guarantee product durability and performance.

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